CN102787267A - Multiple boride metal ceramic based on high-entropy alloy adhesion agent and preparation method thereof - Google Patents
Multiple boride metal ceramic based on high-entropy alloy adhesion agent and preparation method thereof Download PDFInfo
- Publication number
- CN102787267A CN102787267A CN2012103210977A CN201210321097A CN102787267A CN 102787267 A CN102787267 A CN 102787267A CN 2012103210977 A CN2012103210977 A CN 2012103210977A CN 201210321097 A CN201210321097 A CN 201210321097A CN 102787267 A CN102787267 A CN 102787267A
- Authority
- CN
- China
- Prior art keywords
- powder
- entropy alloy
- boride
- polynary
- polynary boride
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a multiple boride metal ceramic based on a high-entropy alloy adhesion agent and a preparation method thereof. According to the boride metal ceramic, high-entropy alloy serves as an adhesion phase, multiple boride serves as a hard phase, the high-entropy alloy adhesion phase is composed of at least four of iron, cobalt, nickel, chromium, aluminum, vanadium, titanium, copper, zirconium, molybdenum and manganese, and the content mole ratio of each element is between 5% and 35%. The multiple boride hard phase comprises W2M1B2 or/and Mo2M2B2, wherein M1 and M2 are at least one of Fe, Ni, Co and Cr. The preparation method of the multiple boride metal ceramic based on the high-entropy alloy adhesion agent comprises the steps of ball-milling mixing, forming and low-pressure sintering.
Description
?
Technical field
The invention belongs to the cermet material preparing technical field, particularly a kind of polynary boride cement based on high-entropy alloy binder and preparation method thereof.
Background technology
For traditional wimet, it has used strategic resources such as a large amount of tungsten, cobalt, and cost is higher.Therefore, the ceramic-metal composite that does not contain precious metals such as cobalt is with its good wear-resisting, anti-corrosion, thermotolerance and have important use value and strategic importance.Boride cement has hardness height, high, the characteristics such as density is low, fracture toughness property is high, wear resistance is high, good corrosion resistance of bending strength, becomes good equivalent material.The eighties in last century, Japanese Toyo Kohan company has researched and developed reaction boronation sintering process, and it is poor to have solved the boride sintering character, is easy to the problem of bonded metal production fragility phase during sintering, successful preparation Mo
2FeB
2, Mo
2NiB
2, W
2FeB
2Etc. a series of polynary wimet.Its hardness and bending strength scope are at 80 ~ 92HRA and 1.0 ~ 2.6GPa, and its density is about 3/5 of ordinary rigid alloy, near stainless density.In recent years, domestic to Mo
2FeB
2More research has been done in aspects such as sintering metal, and has shown the great potential of using as coating, wimet, high-abrasive material etc.But with regard to use properties, polynary boride cement remains in intensity and the insufficient weakness of toughness, and this weakness not only influences its work-ing life, and its use range is restricted.Therefore the obdurability that how to improve polynary boride cement just becomes the problem that material supplier author pays close attention to, and the bonding phase performance of wherein improving polynary boride cement is exactly a kind of valid approach.Many pivots high-entropy alloy has been broken through with a kind or 2 kinds of development frameworks that metallic element is master's a conventional alloys, is a kind of by elementary composition more than 4 kinds, the novel alloy of content mol ratio between 5% to 35% of every kind of element.The mixing of many pivots produces high entropy effect, makes high-entropy alloy have high firmness and excellent toughness and performances such as good anti-corrosion and wear resistance.Therefore, adopt the bonding phase of high-entropy alloy, can effectively realize the raising of the highly malleablized and the performances such as erosion resistance and wear resistance of polynary boride cement as polynary boride cement.
Summary of the invention
The objective of the invention is to weak point, propose a kind of polynary boride ceramics based on high-entropy alloy binder to prior art.This novel boride ceramics can improve its intensity, toughness and corrosion resisting property greatly under the prerequisite that keeps high firmness, high-wearing feature, make it possess excellent comprehensive performances.
Another object of the present invention also is to combine through reasonable component design and optimal preparation technology; A kind of over-all properties that can further improve material is provided; Production technique is easy, the preparation method based on the polynary boride cement of high-entropy alloy binder that production cost is low relatively.
For solving the problems of the technologies described above; Technical scheme provided by the invention is a kind of polynary boride cement based on high-entropy alloy binder; It is characterized in that with the high-entropy alloy being the bonding phase, is the hard phase with the boride, and the composition component of boride ceramet material is by weight percentage:
High-entropy alloy bonding phase 3%～35%
Boride hard phase 65%～97%
Further; Above-mentioned forms by four kinds in iron, cobalt, nickel, chromium, aluminium, vanadium, titanium, copper, zirconium, molybdenum, the manganese element based on high-entropy alloy bonding in the boride cement of high-entropy alloy binder at least, and the content mol ratio of every kind of element is between 5% to 35%.
Further, the polynary boride hard of described polynary boride cement based on high-entropy alloy binder is W mutually
2M1B
2Or and Mo
2M2B
2, wherein M1 is Fe, Ni, and Co, at least a in the Cr element, M2 is Fe, Ni, Co, at least a in the Cr element.
Among the preparation method based on the polynary boride cement of high-entropy alloy binder, the feed composition of the polynary boride cement of high-entropy alloy binder and the weight percentage of each component are:
High-entropy alloy bonding phase raw material 3～35%;
Polynary boride raw material surplus;
Further; The metal simple-substance powder that above-mentioned high-entropy alloy bonding phase raw material is iron, cobalt, nickel, chromium, aluminium, vanadium, titanium, copper, zirconium, molybdenum, manganese element is or/and their powdered alloy; And contain at least four kinds in the above-mentioned element in the raw material, the content mol ratio of every kind of element is between 5% to 35%;
Further, above-mentioned polynary boride raw material is W
2M1B
2Or and Mo
2M2B
2Powder, wherein M1 is Fe, Ni, Co, at least a in the Cr element, M2 is Fe, Ni, Co, at least a Mo in the Cr element
2FeB
2, Mo
2NiB
2, W
2FeB
2, W
2NiB
2At least a in the powder.
Or the weight percentage of the feed composition of the polynary boride cement of high-entropy alloy binder and each component is:
Ferromegnetism constituent element 12.5～21.6%
Boron constituent element 4.8～8.1%
Refractory metal 70.5～82.6 %;
Further; The ferromegnetism constituent element of above-mentioned polynary boride cement based on high-entropy alloy binder is at least a in Fe, Ni, Co, the Cr element, derive from above-mentioned element metal simple-substance powder, the powdered alloy between the above-mentioned element, the boride powder of above-mentioned element, above-mentioned element and tungsten or and the powdered alloy of molybdenum at least a;
Further, the boron of above-mentioned boride cement based on high-entropy alloy binder derives from simple substance B powder, at least a in the boride powder of Fe, Ni, Co, Cr;
Further, the refractory metal of above-mentioned boride cement based on high-entropy alloy binder be W or with the Mo element, derive from W or with the simple substance powder of Mo element, W or with the powdered alloy of Mo element and the formation of ferromegnetism constituent element at least a.
Above-mentioned a kind of polynary boride cement preparing method's based on high-entropy alloy binder process step is following:
(1) according to said ratio, the raw materials mix powder for preparing is inserted ball mill, adds absolute ethyl alcohol or acetone grinding medium; Ball-to-powder weight ratio is (10～4): 1; Carry out wet-milling and disperse 10-72h, take out and grind spheroid, will be able to that abundant wet-milling dispersive mixed slurry precipitates, drying;
(2) 1～3wt% by compound weight mixes forming agent, and thorough mixing carries out granulation, drying after evenly, obtains the mixing pellet of good fluidity, above-mentioned dried mixing pellet is packed into carry out mechanical compression molding in the mould and become blank;
(3) above-mentioned blank is inserted in the low pressure sintering stove, under 250～350 ℃ and 450～600 ℃, respectively be incubated 40～120min and deviate from forming agent, the vacuum tightness in the stove is 1 * 10
-1Pa ~ 1 * 10
-3Pa; At 1100～1300 ℃ of following sintering 90～120min, be cooled to room temperature then again, or accomplish back feeding 1～6MPa argon gas or the nitrogen cool to room temperature is come out of the stove, promptly make polynary boride cement based on high-entropy alloy binder at sintering;
Described forming agent is a kind of in polyoxyethylene glycol, paraffin, buna and the SD glue.
The present invention has also taked some other technical measures.
The present invention has following beneficial effect:
1, because the polynary boride ceramet material based on high-entropy alloy bonding phase according to the invention; Adopt high-entropy alloy as the bonding phase; Utilize the entropy alloy to mix and produce high firmness that high entropy effect has and good toughness and good performance such as corrosion-resistant, wear-resisting and heat-resisting because of many pivots; Come the polynary boride ceramet material of highly malleablized; Put forward its performance such as corrosion-resistant, wear-resisting and heat-resisting, overcome the defective of the mutually single pivot of traditional boride ceramet material bonding simultaneously, effectively improved polynary boride ceramet material comprehensive mechanical performance.
2, in the polynary boride ceramet material based on high-entropy alloy bonding phase; The introducing of high-entropy alloy bonding phase element at least four in iron, cobalt, nickel, chromium, aluminium, vanadium, titanium, copper, zirconium, molybdenum, the violent element; Systemic effect between them is effective highly malleablized bonding phase not only; But also can improve the interface wet ability between bonding phase and the boride hard phase; The comprehensive action of the multiple effects such as crystal grain of refinement hard phase can further make intensity, hardness and the toughness based on the polynary boride ceramet material of high-entropy alloy bonding phase of preparation all significantly improve, and has effectively realized the coupling of hardness and obdurability.
3, adopt conventional raw materials such as iron, chromium, aluminium, can significantly reduce by three boride ceramet material costs.
4, the method for the invention technology is simple, and raw material is easy to obtain, thereby is convenient to suitability for industrialized production.
Description of drawings
Fig. 1 is the SEM back scattering photo of embodiment 1 said goods.
Fig. 2 is the X-ray diffractogram of embodiment 1 said goods.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described further, but the invention is not restricted to following examples.
Embodiment 1:
Take by weighing 65g Mo respectively
2FeB
2Powder, 35g high-entropy alloy bonding phase raw material powder, wherein high-entropy alloy bonding phase raw material powder is iron powder, nickel by powder, cobalt dust and aluminium powder form, according to iron, cobalt, nickel, aluminium element mol ratio 1:1:1:1 preparation.Above-mentioned raw materials inserted together carry out wet-milling in the ball mill and disperse, rotational speed of ball-mill is 30 rev/mins, and milling time is 24 hours, and grinding spheroid, to adopt diameter be the WC-8wt%Co sintered carbide ball of φ 10mm, and ball-to-powder weight ratio is 8:1, and wet grinding media is an anhydrous propanone.Mixed slurry after grinding sieved to take out grinds spheroid, mixed slurry under 80 ℃ of conditions after the precipitate and separate dry 4 hours compound.3wt% by compound weight mixes paraffin as forming agent, granulates after mixing, drying, obtains the mixing pellet of good fluidity.Pack in the mould with the pressure compression moulding of 220MPa mixing pellet, again pressed compact is put into vacuum oven and deviate from forming agent, vacuum tightness is 1 * 10 in the vacuum oven
-2Pa is being warming up to 350 ℃ of insulation 120min, 600 ℃ of insulation 40min; Then qualified powder compact is put into the low pressure sintering stove and carry out sintering, sintering temperature is 1200 ℃, and soaking time is 90 min, feeds the 6MPa argon gas after sintering is accomplished and is quickly cooled to room temperature.The phase composite based on high-entropy alloy bonding polynary boride ceramet material mutually according to mentioned component and processing condition preparation is as shown in Figure 1, and microscopic appearance is as shown in Figure 2.Measuring above-mentioned ceramic-metallic mechanical performance index is: bending strength 2700MPa, Vickers' hardness 1330MPa, fracture toughness property 27MPam
1/2
Embodiment 2:
Take by weighing 40g Mo respectively
2FeB
2Powder, 40gW
2FeB
2Powder and 20g high-entropy alloy bonding is raw material powder mutually; Wherein high-entropy alloy bonding phase raw material powder is ferro-titanium powder, wipla powder, iron powder, copper powder and vanadium powder, according to iron, cobalt, nickel, chromium, titanium, copper, v element mol ratio 1:1:1:1:1:1:1:1:1 preparation.Above-mentioned raw materials inserted together carry out wet-milling in the ball mill and disperse, rotational speed of ball-mill is 30 rev/mins, and milling time is 48 hours, and grinding spheroid, to adopt diameter be the WC-8wt%Co sintered carbide ball of φ 10mm, and ball-to-powder weight ratio is 8:1, and wet grinding media is an absolute ethyl alcohol.Mixed slurry after grinding sieved to take out grinds spheroid, mixed slurry under 80 ℃ of conditions after the precipitate and separate dry 4 hours compound.1wt% by compound weight mixes polyoxyethylene glycol as forming agent, granulates after mixing, drying, obtains the mixing pellet of good fluidity.Pack in the mould with the pressure compression moulding of 220MPa mixing pellet, again pressed compact is put into vacuum oven and deviate from forming agent, vacuum tightness is 1 * 10 in the vacuum oven
-1Pa is being warming up to 260 ℃ of insulation 40min, 550 ℃ of insulation 40min; Then qualified powder compact is put into the low pressure sintering stove and carry out sintering, sintering temperature is 1100 ℃, and soaking time is 120 min, is cooled to room temperature then.The mechanical performance index based on high-entropy alloy bonding polynary boride ceramet material mutually according to mentioned component and processing condition preparation is: bending strength 2400MPa, Vickers' hardness 1380MPa, fracture toughness property 20.2 MPam
1/2
Embodiment 3:
Take by weighing 450g Mo respectively
2NiB
2Powder, 450gW
2NiB
2Powder and 30g high-entropy alloy bonding is raw material powder mutually, and wherein high-entropy alloy bonding phase raw material powder is iron powder, nickel by powder, zirconium powder end, molybdenum powder and manganese powder, according to iron, nickel, zirconium, molybdenum, manganese element mol ratio 1:1:1:1:1 preparation.Above-mentioned raw materials inserted together carry out wet-milling in the ball mill and disperse, rotational speed of ball-mill is 26r/min, and milling time is 10 hours, and grinding spheroid, to adopt diameter be the WC-8wt%Co sintered carbide ball of φ 10mm, and ball-to-powder weight ratio is 10:1, and wet grinding media is a methyl alcohol.Mixed slurry after grinding sieved to take out grinds spheroid, mixed slurry under 80 ℃ of conditions after the precipitate and separate dry 4 hours compound.2wt% by compound weight mixes SD glue as forming agent, granulates after mixing, drying, obtains the mixing pellet of good fluidity.Pack in the mould with the pressure compression moulding of 300MPa mixing pellet, again pressed compact is put into vacuum oven and deviate from forming agent, vacuum tightness 1 * 10 in the vacuum oven
-3Pa is being warming up to 280 ℃ of insulation 60 min, insulation 60min in the time of 560 ℃; Then qualified powder compact is put into the low pressure sintering stove and carry out sintering, sintering temperature is 1300 ℃, and soaking time is 90min, feeds the 1MPa argon gas behind the sintering and is quickly cooled to room temperature.The mechanical performance index based on high-entropy alloy bonding polynary boride ceramet material mutually according to mentioned component and processing condition preparation is: bending strength 1420MPa, Vickers' hardness 1510MPa, fracture toughness property 10.2MPam
1/2
Embodiment 4:
Boride cement raw material (powder) prescription based on high-entropy alloy binder of present embodiment: high-entropy alloy bonding phase 25%wt, polynary boride hard is Mo mutually
2FeB
2Content 75%wt; Wherein high-entropy alloy bonding phase raw material powder is ferro-molybdenum powder, nickel cobalt (alloy) powder, vanadium metal powder, titanium metal powder, chromium metal powder, iron powder, copper powder and manganese powder, according to iron, cobalt, nickel, chromium, vanadium, titanium, molybdenum, copper, manganese element mol ratio 1:1:1:1:1:1:0.5:0.5:0.5 preparation; The component of wherein polynary boride hard phase raw material and the weight percentage of each component are ferromegnetism constituent element 20.7%; Boron constituent element 8%, refractory metal 71.3 %, and the ferromegnetism constituent element derives from iron powder and ferro-boron powder; The boron constituent element derives from boron powder and ferro-boron powder, and refractory metal derives from molybdenum powder.The above-mentioned raw materials powder is put into the roller milling machine together carry out the wet-milling dispersion; Rotational speed of ball-mill is 25 rev/mins, and milling time is 36 hours, and grinding spheroid employing diameter is the WC-8wt%Co sintered carbide ball of φ 10mm; Ball-to-powder weight ratio is 6:1, and wet grinding media is an absolute ethyl alcohol.Mixed slurry after grinding sieved to take out grinds spheroid, mixed slurry under 80 ℃ of conditions after the precipitate and separate dry 5 hours compound.1wt% by compound weight mixes buna as forming agent, granulates after mixing, drying, obtains the mixing pellet of good fluidity.Pack in the mould with the pressure compression moulding of 200MPa mixing pellet, again pressed compact is put into vacuum oven and deviate from forming agent, vacuum tightness 1 * 10 in the vacuum oven
-2Pa is being warming up to 350 ℃ of insulation 40min, and insulation 40min at 1250 ℃ of sintering 90min, is cooled to room temperature more then in the time of 600 ℃.Measuring above-mentioned ceramic-metallic mechanical performance index is: bending strength 2109MPa, Vickers' hardness 1406MP, fracture toughness property 16.18 MPam
1/2
Embodiment 5:
Boride cement raw material (powder) prescription based on high-entropy alloy binder of present embodiment: high-entropy alloy bonding phase 10%wt, polynary boride hard is Mo mutually
2NiB
2Content 90%wt, wherein high-entropy alloy bonding phase raw material powder is molybdenum powder, nickel cobalt (alloy) powder, chromium metal powder, nickel powder, according to molybdenum, cobalt, nickel, chromium element mol ratio 1:1:0.5:0.5 preparation; The component of wherein polynary boride hard phase raw material and the weight percentage of each component are ferromegnetism constituent element 21.6%; Boron constituent element 7.9%, refractory metal 70.5 %, and the ferromegnetism constituent element derives from nickel powder; The boron constituent element derives from the boronation nickel powder, and refractory metal derives from molybdenum powder.The above-mentioned raw materials powder is put into the roller milling machine carry out the wet-milling dispersion; Rotational speed of ball-mill is 40 rev/mins, and milling time is 60 hours, and grinding spheroid employing diameter is the WC-8wt%Co sintered carbide ball of φ 10mm; Ball-to-powder weight ratio is 7:1, and wet grinding media is an absolute ethyl alcohol.Mixed slurry after grinding sieved to take out grinds spheroid, mixed slurry under 80 ℃ of conditions after the precipitate and separate dry 5 hours compound.1wt% by compound weight mixes SD glue as forming agent, granulates after mixing, drying, obtains the mixing pellet of good fluidity.Pack in the mould with the pressure compression moulding of 280MPa mixing pellet, again pressed compact is put into vacuum oven and deviate from forming agent, vacuum tightness 1 * 10 in the vacuum oven
-1Pa is being warming up to 250 ℃ of insulation 60min, 550 ℃ of insulation 60min; Sintering in the low pressure sintering stove then, sintering temperature is 1150 ℃, soaking time is 105min, feeds the 5MPa argon gas behind the sintering and cools off fast.Measuring above-mentioned ceramic-metallic mechanical performance index is: bending strength 1825MPa, Vickers' hardness 1458, fracture toughness property 13 MPam
1/2
Embodiment 6:
Boride cement raw material (powder) prescription based on high-entropy alloy binder of present embodiment: high-entropy alloy bonding phase 15%wt, polynary boride hard is W mutually
2FeB
2Content 85%wt, wherein high-entropy alloy bonding phase raw material powder is molybdenum powder, nickel by powder, chromium metal powder, iron powder, vanadium powder, according to molybdenum, chromium, nickel, iron, v element mol ratio 1:1:1:1:1 preparation; The component of wherein polynary boride hard phase raw material and the weight percentage of each component are ferromegnetism constituent element 12.5%, boron constituent element 4.9%, and refractory metal 82.6%, and the ferromegnetism constituent element derives from iron powder, and the boron constituent element derives from the boron powder, and refractory metal derives from tungsten powder.The above-mentioned raw materials powder is put into the roller milling machine carry out the wet-milling dispersion; Rotational speed of ball-mill is 29 rev/mins, and milling time is 72 hours, and grinding spheroid employing diameter is the WC-8wt%Co sintered carbide ball of φ 10mm; Ball-to-powder weight ratio is 10:1, and wet grinding media is an absolute ethyl alcohol.Mixed slurry after grinding sieved to take out grinds spheroid, mixed slurry under 70 ℃ of conditions after the precipitate and separate dry 4.5 hours compound.1.8wt% by compound weight mixes polyoxyethylene glycol as forming agent, granulates after mixing, drying, obtains the mixing pellet of good fluidity.Pack in the mould with the pressure compression moulding of 240MPa mixing pellet, again pressed compact is put into vacuum oven and deviate from forming agent, vacuum tightness 1 * 10 in the vacuum oven
-3Pa is being warming up to 270 ℃ of insulation 100min, 570 ℃ of insulation 100min; Sintering in the low pressure sintering stove then, sintering temperature is 1300 ℃, soaking time is 90 min, feeds the 6MPa argon gas behind the sintering and cools off fast.Measuring above-mentioned ceramic-metallic mechanical performance index is: bending strength 1963MPa, Vickers' hardness 1410, fracture toughness property 13.77 MPam
1/2
Embodiment 7:
Boride cement raw material (powder) prescription based on high-entropy alloy binder of present embodiment: high-entropy alloy bonding phase 12%wt, polynary boride hard is W mutually
2NiB
2Content 88%wt, wherein high-entropy alloy bonding phase raw material powder is molybdenum powder, nickel powder, chromium powder, vanadium powder, zirconium powder, copper powder, according to molybdenum, chromium, nickel, zirconium, vanadium, copper mol ratio 1:1:1:1:1:1 preparation; The component of wherein polynary boride hard phase raw material and the weight percentage of each component are ferromegnetism constituent element 13.1%, boron constituent element 4.8%, and refractory metal 82.1%, and the ferromegnetism constituent element derives from iron powder, and the boron constituent element derives from the boron powder, and refractory metal derives from tungsten powder.The above-mentioned raw materials powder is put into the roller milling machine carry out the wet-milling dispersion; Rotational speed of ball-mill is 60 rev/mins, and milling time is 30 hours, and grinding spheroid employing diameter is the WC-8wt%Co sintered carbide ball of φ 10mm; Ball-to-powder weight ratio is 10:1, and wet grinding media is an absolute ethyl alcohol.Mixed slurry after grinding sieved to take out grind spheroid, the mixed slurry buna is as forming agent, granulates after mixing, drying, obtains the mixing pellet of good fluidity.Pack in the mould with the pressure compression moulding of 260MPa mixing pellet, again pressed compact is put into vacuum oven and deviate from forming agent, vacuum tightness 1 * 10 in the vacuum oven
-3Pa is being warming up to 270 ℃ of insulation 100min, 570 ℃ of insulation 100min; Sintering in the low pressure sintering stove then, sintering temperature is 1100 ℃, soaking time is 100 min, feeds the 6MPa argon gas behind the sintering and cools off fast.Measuring above-mentioned ceramic-metallic mechanical performance index is: bending strength 1810MPa, Vickers' hardness 1423, fracture toughness property 13.2 MPam
1/2
Embodiment 8:
Boride cement raw material (powder) prescription based on high-entropy alloy binder of present embodiment: high-entropy alloy bonding phase 8%wt, polynary boride hard is W mutually
2(Fe
0.5, Co
0.5) B
22Content 92%wt, wherein high-entropy alloy bonding phase raw material powder is molybdenum powder, nickel powder, chromium powder, vanadium powder, zirconium powder, copper powder, according to molybdenum, chromium, nickel, zirconium, vanadium, copper mol ratio 1:1:1:1:1:1 preparation; Are the component of wherein polynary boride hard phase raw material and the weight percentage of each component the ferromegnetism constituent element? %; Boron constituent element 4.8%, refractory metal 82.3%, and the ferromegnetism constituent element derives from iron powder and boronation cobalt powder; The boron constituent element derives from boron powder and boronation cobalt powder, and refractory metal derives from tungsten powder.The above-mentioned raw materials powder is put into the roller milling machine carry out the wet-milling dispersion; Rotational speed of ball-mill is 60 rev/mins, and milling time is 30 hours, and grinding spheroid employing diameter is the WC-8wt%Co sintered carbide ball of φ 10mm; Ball-to-powder weight ratio is 10:1, and wet grinding media is an absolute ethyl alcohol.Mixed slurry after grinding sieved to take out grind spheroid, the mixed slurry buna is as forming agent, granulates after mixing, drying, obtains the mixing pellet of good fluidity.Pack in the mould with the pressure compression moulding of 260MPa mixing pellet, again pressed compact is put into vacuum oven and deviate from forming agent, vacuum tightness 1 * 10 in the vacuum oven
-3Pa is being warming up to 270 ℃ of insulation 100min, 570 ℃ of insulation 100min; Sintering in the low pressure sintering stove then, sintering temperature is 1100 ℃, soaking time is 100 min, feeds the 6MPa argon gas behind the sintering and cools off fast.Measuring above-mentioned ceramic-metallic mechanical performance index is: bending strength 1763MPa, Vickers' hardness 1483, fracture toughness property 11.5 MPam
1/2
Embodiment 9:
Boride cement raw material (powder) prescription based on high-entropy alloy binder of present embodiment: high-entropy alloy bonding phase 27%wt, polynary boride hard is Mo mutually
2(Fe
0.5, Cr
0.5) B
22Content 73%wt, wherein high-entropy alloy bonding phase raw material powder is molybdenum powder, nickel powder, chromium powder, vanadium powder, zirconium powder, copper powder, according to molybdenum, chromium, nickel, zirconium, vanadium, copper mol ratio 1:1:1:1:1:1 preparation; The component of wherein polynary boride hard phase raw material and the weight percentage of each component are ferromegnetism constituent element 20.1%; Boron constituent element 8.1%, refractory metal 71.8%, and the ferromegnetism constituent element derives from iron powder and two boronation chromium powders; The boron constituent element derives from boron powder and two boronation chromium powders, and refractory metal derives from molybdenum powder.The above-mentioned raw materials powder is put into the roller milling machine carry out the wet-milling dispersion; Rotational speed of ball-mill is 60 rev/mins, and milling time is 30 hours, and grinding spheroid employing diameter is the WC-8wt%Co sintered carbide ball of φ 10mm; Ball-to-powder weight ratio is 10:1, and wet grinding media is an absolute ethyl alcohol.Mixed slurry after grinding sieved to take out grind spheroid, the mixed slurry buna is as forming agent, granulates after mixing, drying, obtains the mixing pellet of good fluidity.Pack in the mould with the pressure compression moulding of 260MPa mixing pellet, again pressed compact is put into vacuum oven and deviate from forming agent, vacuum tightness 1 * 10 in the vacuum oven
-3Pa is being warming up to 270 ℃ of insulation 100min, 570 ℃ of insulation 100min; Sintering in the low pressure sintering stove then, sintering temperature is 1100 ℃, soaking time is 100 min, feeds the 6MPa argon gas behind the sintering and cools off fast.Measuring above-mentioned ceramic-metallic mechanical performance index is: bending strength 2560MPa, Vickers' hardness 1330, fracture toughness property 24.6 MPam
1/2
Embodiment 10:
Boride cement raw material (powder) prescription based on high-entropy alloy binder of present embodiment: bonding phase 27%wt, polynary boride hard is Mo mutually
2(Fe
0.33, Cr
0.33,Ni
0.33) B
22Content 73%wt, wherein high-entropy alloy bonding phase raw material powder is iron powder, cobalt powder, vanadium powder, manganese powder, copper powder, according to iron, cobalt, vanadium, manganese, copper mol ratio 1:1:1:1:1 preparation; The component of wherein polynary boride hard phase raw material and the weight percentage of each component are ferromegnetism constituent element 20.6%; Boron constituent element 8.0%, refractory metal 71.3%, and the ferromegnetism constituent element derives from iron powder, chromium powder and nickel powder; The boron constituent element derives from the boron powder, and refractory metal derives from molybdenum powder.The above-mentioned raw materials powder is put into the roller milling machine carry out the wet-milling dispersion; Rotational speed of ball-mill is 60 rev/mins, and milling time is 48 hours, and grinding spheroid employing diameter is the WC-8wt%Co sintered carbide ball of φ 10mm; Ball-to-powder weight ratio is 8:1, and wet grinding media is an absolute ethyl alcohol.Mixed slurry after grinding sieved to take out grind spheroid, the mixed slurry buna is as forming agent, granulates after mixing, drying, obtains the mixing pellet of good fluidity.Pack in the mould with the pressure compression moulding of 260MPa mixing pellet, again pressed compact is put into vacuum oven and deviate from forming agent, vacuum tightness 1 * 10 in the vacuum oven
-3Pa is being warming up to 270 ℃ of insulation 100min, 570 ℃ of insulation 100min; Sintering in the low pressure sintering stove then, sintering temperature is 1180 ℃, soaking time is 100 min, feeds the 6MPa argon gas behind the sintering and cools off fast.Measuring above-mentioned ceramic-metallic mechanical performance index is: bending strength 2540MPa, Vickers' hardness 1340, fracture toughness property 25MPam
1/2
Embodiment 11:
Present embodiment based on high-entropy alloy binder boride cement raw material (powder) prescription: high-entropy alloy bonding phase 32%wt, polynary boride hard is Mo mutually
2FeB
2Content 68%wt, wherein high-entropy alloy bonding phase raw material powder is ferro-boron powder, nickel metal powder, chromium metal-powder, vanadium metal powder, manganese metal-powder, according to iron, nickel, chromium, vanadium, manganese element mol ratio 1:0.5:0.5:0.5:0.5 preparation; The component of wherein polynary boride hard phase raw material and the weight percentage of each component are ferromegnetism constituent element 20.7%; Boron constituent element 8.0%, refractory metal 71.3%, wherein the iron constituent element is from ferro-boron powder (its boron content is 20%); The boron constituent element is from the ferro-boron powder, and source metal hard to tolerate is from the Mo powder.The above-mentioned raw materials powder is put into the roller milling machine together carry out the wet-milling dispersion; Rotational speed of ball-mill is 25 rev/mins, and milling time is 72 hours, and grinding spheroid employing diameter is the WC-8wt%Co sintered carbide ball of φ 10mm; Ball-to-powder weight ratio is 6:1, and wet grinding media is an absolute ethyl alcohol.Mixed slurry after grinding sieved to take out grinds spheroid, mixed slurry under 80 ℃ of conditions after the precipitate and separate dry 5 hours compound.1wt% by compound weight mixes polyoxyethylene glycol as forming agent, granulates after mixing, drying, obtains the mixing pellet of good fluidity.Pack in the mould with the pressure compression moulding of 200MPa mixing pellet, again pressed compact is put into vacuum oven and deviate from forming agent, vacuum tightness 1 * 10 in the vacuum oven
-2Pa is being warming up to 350 ℃ of insulation 40min, and insulation 40min at 1200 ℃ of sintering 90min, is cooled to room temperature more then in the time of 600 ℃.Measuring above-mentioned ceramic-metallic mechanical performance index is: bending strength 2680MPa, Vickers' hardness 1324 MP, fracture toughness property 26.5MPam
1/2
Embodiment 12:
Present embodiment based on high-entropy alloy binder boride cement raw material (powder) prescription: high-entropy alloy bonding phase 35%wt, polynary boride hard is Mo mutually
2FeB
2Content 65%wt; Wherein high-entropy alloy bonding phase raw material powder is iron metal powder and Ferromolybdenum Powder, nickel metal powder, chromium metal-powder, vanadium metal powder, manganese metal-powder; Prepare the component of polynary boride hard raw materials and the weight percentage of each component is a ferromegnetism constituent element 20.7% according to iron, nickel, chromium, vanadium, manganese element mol ratio 1:0.5:0.5:0.5:0.5; Boron constituent element 8.0%; Refractory metal 71.3%, wherein ferromegnetism constituent element and refractory metal constituent element all come from the molybdenum-iron powder, and the boron constituent element derives from the boron powder.The above-mentioned raw materials powder is put into the roller milling machine together carry out the wet-milling dispersion; Rotational speed of ball-mill is 25 rev/mins, and milling time is 72 hours, and grinding spheroid employing diameter is the WC-8wt%Co sintered carbide ball of φ 10mm; Ball-to-powder weight ratio is 5:1, and wet grinding media is an absolute ethyl alcohol.Mixed slurry after grinding sieved to take out grinds spheroid, mixed slurry under 80 ℃ of conditions after the precipitate and separate dry 5 hours compound.1wt% by compound weight mixes polyoxyethylene glycol as forming agent, granulates after mixing, drying, obtains the mixing pellet of good fluidity.Pack in the mould with the pressure compression moulding of 200MPa mixing pellet, again pressed compact is put into vacuum oven and deviate from forming agent, vacuum tightness 1 * 10 in the vacuum oven
-2Pa is being warming up to 350 ℃ of insulation 40min, and insulation 40min at 1200 ℃ of sintering 90min, is cooled to room temperature more then in the time of 600 ℃.Is measuring above-mentioned ceramic-metallic mechanical performance index: bending strength? MPa, Vickers' hardness 1300MP, fracture toughness property 27.3MPam
1/2
Embodiment 13:
Present embodiment based on high-entropy alloy binder boride cement raw material (powder) prescription: bonding phase 20%wt, polynary boride hard is W mutually
2FeB
2And Mo
2FeB
2Content is respectively 40%wt, 40%wt, and wherein high-entropy alloy bonding phase raw material powder is iron powder and ferrotungsten powder, cobalt powder, manganese powder, vanadium powder, aluminium powder, prepares according to iron, cobalt, manganese, vanadium, aluminium element mol ratio 1:1:1:1:1:1; The component of wherein polynary boride hard phase Mo2FeB2 raw material and the weight percentage of each component are ferromegnetism constituent element 15.63%; Boron constituent element 6.05%; Refractory metal 78.32%; And the ferromegnetism constituent element derives from iron powder and ferro-tungsten powder, and the boron constituent element derives from the boron powder, and refractory metal derives from molybdenum powder and ferro-tungsten powder.The above-mentioned raw materials powder is put into the roller milling machine carry out the wet-milling dispersion; Rotational speed of ball-mill is 60 rev/mins, and milling time is 72 hours, and grinding spheroid employing diameter is the WC-8wt%Co sintered carbide ball of φ 10mm; Ball-to-powder weight ratio is 4:1, and wet grinding media is an absolute ethyl alcohol.Mixed slurry after grinding sieved to take out grind spheroid, the mixed slurry buna is as forming agent, granulates after mixing, drying, obtains the mixing pellet of good fluidity.Pack in the mould with the pressure compression moulding of 260MPa mixing pellet, again pressed compact is put into vacuum oven and deviate from forming agent, vacuum tightness 1 * 10 in the vacuum oven
-3Pa is being warming up to 280 ℃ of insulation 100min, 600 ℃ of insulation 120min; Sintering in the low pressure sintering stove then, sintering temperature is 1150 ℃, soaking time is 100 min, feeds the 4MPa argon gas behind the sintering and cools off fast.Measuring above-mentioned ceramic-metallic mechanical performance index is: bending strength 2380MPa, Vickers' hardness 1410, fracture toughness property 20.4MPam
1/2
Claims (5)
1. polynary boride cement based on high-entropy alloy binder; It is characterized in that said polynary boride cement based on high-entropy alloy binder is the bonding phase with the high-entropy alloy; With the boride is the hard phase, and the composition component of polynary boride ceramet material is by weight percentage:
High-entropy alloy bonding phase 3%～35%
Polynary boride hard phase 65%～97%.
2. the polynary boride cement based on high-entropy alloy binder according to claim 1; It is characterized in that said high-entropy alloy bonding forms by four kinds in iron, cobalt, nickel, chromium, aluminium, vanadium, titanium, copper, zirconium, molybdenum and the manganese element at least, and the content mol ratio of every kind of element is between 5% to 35%.
3. the polynary boride cement based on high-entropy alloy binder according to claim 1 is characterized in that said polynary boride hard is W mutually
2M1B
2Or and Mo
2M2B
2, wherein M1 is Fe, Ni, and Co, at least a in the Cr element, M2 is Fe, Ni, Co, at least a in the Cr element.
4. polynary boride cement preparation method based on high-entropy alloy binder is characterized in that the feed composition of said polynary boride ceramet material based on high-entropy alloy bonding phase and the weight percentage of each component are:
High-entropy alloy bonding phase raw material 3～35%
Polynary boride raw material surplus;
The metal simple-substance powder that said high-entropy alloy bonding phase raw material is iron, cobalt, nickel, chromium, aluminium, vanadium, titanium, copper, zirconium, molybdenum, manganese and REE is or/and their powdered alloy; And contain at least four kinds in the above-mentioned element in the raw material, the content mol ratio of every kind of element is between 5% to 35%;
The polynary boride raw material of said polynary boride cement based on high-entropy alloy binder is W
2M1B
2Or and Mo
2M2B
2Powder, wherein M1 is Fe, Ni, Co, at least a in the Cr element, M2 is Fe, Ni, Co, at least a in the Cr element;
Or feed composition and each component weight percentage of said polynary boride ceramet material based on high-entropy alloy bonding phase are:
Ferromegnetism constituent element 12.5～21.6%
Boron constituent element 4.8～8.1%
Refractory metal constituent element 70.5～82.6 %;
The ferromegnetism constituent element of said polynary boride cement based on high-entropy alloy binder is at least a in Fe, Ni, Co, the Cr element, derive from above-mentioned element metal simple-substance powder, the powdered alloy between the above-mentioned element, the boride powder of above-mentioned element, above-mentioned element and tungsten or and the powdered alloy of molybdenum at least a;
The boron of said polynary boride cement based on high-entropy alloy binder derives from simple substance B powder, Fe, Ni, Co or and the boride powder of Cr at least a;
The refractory metal of said boride cement based on high-entropy alloy binder be W or with the Mo element, derive from W or with the simple substance powder of Mo element, W or with the powdered alloy of Mo element and the formation of ferromegnetism constituent element at least a.
5. a kind of polynary boride cement preparation method based on high-entropy alloy binder according to claim 4 is characterized in that process step is following:
(1) according to said ratio, the raw materials mix powder for preparing is inserted ball mill, adds absolute ethyl alcohol or acetone grinding medium; Ball-to-powder weight ratio is (10～4): 1; Carry out wet-milling and disperse 10-72h, take out and grind spheroid, will be able to that abundant wet-milling dispersive mixed slurry precipitates, drying;
(2) 1～3wt% by compound weight mixes forming agent, and thorough mixing carries out granulation, drying after evenly, obtains the mixing pellet of good fluidity, above-mentioned dried mixing pellet is packed into carry out mechanical compression molding in the mould and become blank;
(3) above-mentioned blank is inserted in the low pressure sintering stove, under 250～350 ℃ and 450～600 ℃, respectively be incubated 40～120min and deviate from forming agent, the vacuum tightness in the stove is 1 * 10
-1Pa ~ 1 * 10
-3Pa; At 1100～1300 ℃ of following sintering 90～120min, be cooled to room temperature then again, or accomplish back feeding 1～6MPa argon gas or the nitrogen cool to room temperature is come out of the stove, promptly make polynary boride cement based on high-entropy alloy binder at sintering;
Described forming agent is a kind of in polyoxyethylene glycol, paraffin, buna and the SD glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103210977A CN102787267A (en) | 2012-09-04 | 2012-09-04 | Multiple boride metal ceramic based on high-entropy alloy adhesion agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103210977A CN102787267A (en) | 2012-09-04 | 2012-09-04 | Multiple boride metal ceramic based on high-entropy alloy adhesion agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102787267A true CN102787267A (en) | 2012-11-21 |
Family
ID=47152851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103210977A Pending CN102787267A (en) | 2012-09-04 | 2012-09-04 | Multiple boride metal ceramic based on high-entropy alloy adhesion agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102787267A (en) |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105506613A (en) * | 2016-02-02 | 2016-04-20 | 济南大学 | Preparation method for high-entropy alloy coating |
| CN105603287A (en) * | 2016-02-19 | 2016-05-25 | 中原工学院 | Oxide-based high-entropy alloy ceramic binding agent special for PCBN |
| WO2016101156A1 (en) * | 2014-12-23 | 2016-06-30 | 湖北宝德隆商贸有限公司 | Ceramic steel material and preparation method thereof |
| CN105734390A (en) * | 2016-04-22 | 2016-07-06 | 燕山大学 | Method for preparing cubic boron nitride glomerocryst composite combined with high-entropy alloy |
| CN106583749A (en) * | 2016-12-20 | 2017-04-26 | 安徽工业大学 | Method for preparing rare earth-transition high-entropy alloy powder with controllable particle size |
| CN107012347A (en) * | 2017-03-31 | 2017-08-04 | 苏州科技大学 | A kind of high-entropy alloy sintered diamond locking nub |
| CN107332163A (en) * | 2017-07-12 | 2017-11-07 | 国网山东省电力公司临沂供电公司 | A kind of transmission line of electricity stringing aid |
| CN108642431A (en) * | 2018-05-29 | 2018-10-12 | 湘潭大学 | Metal-cermic coating/powder of resisting corrosion of molten zinc and preparation method thereof, sinking roller |
| CN109022988A (en) * | 2018-09-21 | 2018-12-18 | 四川煜兴新型材料科技有限公司 | A kind of preparation method of tungsten base high-specific-gravity alloy material |
| CN109097657A (en) * | 2018-10-23 | 2018-12-28 | 中南大学 | A kind of Mo nano-particle reinforcement CoCrNi medium entropy alloy composite materials and preparation method thereof |
| CN109133937A (en) * | 2018-08-08 | 2019-01-04 | 天津德天助非晶纳米科技有限公司 | Ternary boride and its preparation method and application |
| CN109338199A (en) * | 2018-09-19 | 2019-02-15 | 西安交通大学 | A kind of high-entropy alloy and preparation method thereof of ceramic particle enhancing |
| CN109553112A (en) * | 2018-11-12 | 2019-04-02 | 北京工业大学 | A kind of preparation method of single-phase WCoB powder |
| CN109867525A (en) * | 2019-01-28 | 2019-06-11 | 广东工业大学 | A kind of high-entropy alloy boride ceramics and its preparation method and application |
| CN110607473A (en) * | 2019-10-14 | 2019-12-24 | 石家庄铁道大学 | Transition metal carbonitride-based high-entropy metal ceramic and preparation method and application thereof |
| CN110919232A (en) * | 2019-12-31 | 2020-03-27 | 华北水利水电大学 | Gold-based high-entropy brazing filler metal |
| CN110976886A (en) * | 2019-12-20 | 2020-04-10 | 中南大学 | Boride/alloy composite material and preparation method and application thereof |
| CN111620696A (en) * | 2020-06-09 | 2020-09-04 | 吉林大学 | Preparation method of high-hardness ferromagnetic alpha-MnB |
| CN112323062A (en) * | 2020-11-11 | 2021-02-05 | 中国南方电网有限责任公司超高压输电公司柳州局 | Al and Cr reinforced Mo2NiB2Metal ceramic coating and preparation method thereof |
| CN112609098A (en) * | 2020-12-07 | 2021-04-06 | 湘潭大学 | Aluminium liquid corrosion resistant TiB2Preparation method of (E) -FeCoNiCrMn composite material |
| US10988834B2 (en) * | 2016-03-21 | 2021-04-27 | Postech Academy-Industry Foundation | Cr—Fe—Mn—Ni—V-based high-entropy alloy |
| CN112813327A (en) * | 2020-12-30 | 2021-05-18 | 成都美奢锐新材料有限公司 | High-entropy alloy-based composite material for oily environment wear-resistant part and preparation method thereof |
| CN112899509A (en) * | 2021-01-14 | 2021-06-04 | 湘潭大学 | Composite material resisting molten zinc corrosion and preparation method and equipment thereof |
| CN113265573A (en) * | 2021-04-29 | 2021-08-17 | 四川大学 | High-strength high-toughness high-entropy alloy ceramic and preparation method thereof |
| CN115029601A (en) * | 2022-07-20 | 2022-09-09 | 上海海事大学 | High-entropy alloy/hard ceramic synergistic strengthening composite coating and preparation method thereof |
| CN115323244A (en) * | 2022-08-18 | 2022-11-11 | 湖南三泰新材料股份有限公司 | High-entropy alloy material and preparation method thereof |
| RU2804391C1 (en) * | 2022-12-28 | 2023-09-28 | федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский политехнический университет Петра Великого" (ФГАОУ ВО "СПбПУ") | Method for producing high-entropy alloy boride |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1827817A (en) * | 2006-04-14 | 2006-09-06 | 韶关学院 | Hard alloy sintered by high-entropy alloy binder and compound carbide and preparation method thereof |
| CN101701311A (en) * | 2009-09-29 | 2010-05-05 | 武汉科技大学 | WCoB ternary boride cermet material and preparation method thereof |
| CN102191393A (en) * | 2010-03-18 | 2011-09-21 | 中国科学院上海硅酸盐研究所 | Preparation method of nickel molybdenum boron ternary boride base hard alloy |
| CN102534340A (en) * | 2012-01-13 | 2012-07-04 | 四川大学 | Nitrogen-containing hard alloy based on multi-element composite titanium carbonitride solid solution and preparation method for nitrogen-containing hard alloy |
-
2012
- 2012-09-04 CN CN2012103210977A patent/CN102787267A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1827817A (en) * | 2006-04-14 | 2006-09-06 | 韶关学院 | Hard alloy sintered by high-entropy alloy binder and compound carbide and preparation method thereof |
| CN101701311A (en) * | 2009-09-29 | 2010-05-05 | 武汉科技大学 | WCoB ternary boride cermet material and preparation method thereof |
| CN102191393A (en) * | 2010-03-18 | 2011-09-21 | 中国科学院上海硅酸盐研究所 | Preparation method of nickel molybdenum boron ternary boride base hard alloy |
| CN102534340A (en) * | 2012-01-13 | 2012-07-04 | 四川大学 | Nitrogen-containing hard alloy based on multi-element composite titanium carbonitride solid solution and preparation method for nitrogen-containing hard alloy |
Non-Patent Citations (1)
| Title |
|---|
| 刘开琪等: "《金属陶瓷的制备与应用》", 31 March 2008 * |
Cited By (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016101156A1 (en) * | 2014-12-23 | 2016-06-30 | 湖北宝德隆商贸有限公司 | Ceramic steel material and preparation method thereof |
| CN105917014A (en) * | 2014-12-23 | 2016-08-31 | 湖北宝德隆商贸有限公司 | Ceramic steel material and preparation method thereof |
| US20160348219A1 (en) * | 2014-12-23 | 2016-12-01 | Bright Time (Hubei) Industrial Ltd. | Ceramic steel and method of preparing the same |
| CN105506613A (en) * | 2016-02-02 | 2016-04-20 | 济南大学 | Preparation method for high-entropy alloy coating |
| CN105506613B (en) * | 2016-02-02 | 2018-01-30 | 济南大学 | A kind of preparation method of high-entropy alloy coating |
| CN105603287A (en) * | 2016-02-19 | 2016-05-25 | 中原工学院 | Oxide-based high-entropy alloy ceramic binding agent special for PCBN |
| US10988834B2 (en) * | 2016-03-21 | 2021-04-27 | Postech Academy-Industry Foundation | Cr—Fe—Mn—Ni—V-based high-entropy alloy |
| CN105734390A (en) * | 2016-04-22 | 2016-07-06 | 燕山大学 | Method for preparing cubic boron nitride glomerocryst composite combined with high-entropy alloy |
| CN105734390B (en) * | 2016-04-22 | 2018-01-23 | 燕山大学 | A kind of preparation method for the polycrystalline cubic boron nitride compound material that high-entropy alloy combines |
| CN106583749B (en) * | 2016-12-20 | 2018-05-18 | 安徽工业大学 | A kind of method of the controllable rare earth of prepared sizes-transition group high-entropy alloy powder |
| CN106583749A (en) * | 2016-12-20 | 2017-04-26 | 安徽工业大学 | Method for preparing rare earth-transition high-entropy alloy powder with controllable particle size |
| CN107012347B (en) * | 2017-03-31 | 2018-09-21 | 苏州科技大学 | A kind of high-entropy alloy sintered diamond locking nub |
| CN107012347A (en) * | 2017-03-31 | 2017-08-04 | 苏州科技大学 | A kind of high-entropy alloy sintered diamond locking nub |
| CN107332163A (en) * | 2017-07-12 | 2017-11-07 | 国网山东省电力公司临沂供电公司 | A kind of transmission line of electricity stringing aid |
| CN108642431A (en) * | 2018-05-29 | 2018-10-12 | 湘潭大学 | Metal-cermic coating/powder of resisting corrosion of molten zinc and preparation method thereof, sinking roller |
| CN108642431B (en) * | 2018-05-29 | 2020-09-04 | 湘潭大学 | Metal ceramic coating/powder resistant to molten zinc corrosion, preparation method thereof and sink roller |
| CN109133937A (en) * | 2018-08-08 | 2019-01-04 | 天津德天助非晶纳米科技有限公司 | Ternary boride and its preparation method and application |
| CN109133937B (en) * | 2018-08-08 | 2021-05-25 | 天津德天助非晶纳米科技有限公司 | Ternary boride and preparation method and application thereof |
| CN109338199A (en) * | 2018-09-19 | 2019-02-15 | 西安交通大学 | A kind of high-entropy alloy and preparation method thereof of ceramic particle enhancing |
| CN109338199B (en) * | 2018-09-19 | 2020-07-28 | 西安交通大学 | Ceramic particle reinforced high-entropy alloy and preparation method thereof |
| CN109022988A (en) * | 2018-09-21 | 2018-12-18 | 四川煜兴新型材料科技有限公司 | A kind of preparation method of tungsten base high-specific-gravity alloy material |
| CN109097657A (en) * | 2018-10-23 | 2018-12-28 | 中南大学 | A kind of Mo nano-particle reinforcement CoCrNi medium entropy alloy composite materials and preparation method thereof |
| CN109553112A (en) * | 2018-11-12 | 2019-04-02 | 北京工业大学 | A kind of preparation method of single-phase WCoB powder |
| CN109553112B (en) * | 2018-11-12 | 2022-03-22 | 北京工业大学 | Preparation method of single-phase WCoB powder |
| CN109867525A (en) * | 2019-01-28 | 2019-06-11 | 广东工业大学 | A kind of high-entropy alloy boride ceramics and its preparation method and application |
| CN110607473A (en) * | 2019-10-14 | 2019-12-24 | 石家庄铁道大学 | Transition metal carbonitride-based high-entropy metal ceramic and preparation method and application thereof |
| CN110976886A (en) * | 2019-12-20 | 2020-04-10 | 中南大学 | Boride/alloy composite material and preparation method and application thereof |
| CN110976886B (en) * | 2019-12-20 | 2022-03-04 | 中南大学 | Boride/alloy composite material and preparation method and application thereof |
| CN110919232B (en) * | 2019-12-31 | 2020-09-04 | 华北水利水电大学 | Gold-based high-entropy brazing filler metal |
| CN110919232A (en) * | 2019-12-31 | 2020-03-27 | 华北水利水电大学 | Gold-based high-entropy brazing filler metal |
| CN111620696A (en) * | 2020-06-09 | 2020-09-04 | 吉林大学 | Preparation method of high-hardness ferromagnetic alpha-MnB |
| CN112323062A (en) * | 2020-11-11 | 2021-02-05 | 中国南方电网有限责任公司超高压输电公司柳州局 | Al and Cr reinforced Mo2NiB2Metal ceramic coating and preparation method thereof |
| CN112609098A (en) * | 2020-12-07 | 2021-04-06 | 湘潭大学 | Aluminium liquid corrosion resistant TiB2Preparation method of (E) -FeCoNiCrMn composite material |
| CN112813327A (en) * | 2020-12-30 | 2021-05-18 | 成都美奢锐新材料有限公司 | High-entropy alloy-based composite material for oily environment wear-resistant part and preparation method thereof |
| CN112813327B (en) * | 2020-12-30 | 2022-01-25 | 成都美奢锐新材料有限公司 | High-entropy alloy-based composite material for oily environment wear-resistant part and preparation method thereof |
| CN112899509B (en) * | 2021-01-14 | 2022-02-15 | 湘潭大学 | Composite material resisting molten zinc corrosion and preparation method and equipment thereof |
| CN112899509A (en) * | 2021-01-14 | 2021-06-04 | 湘潭大学 | Composite material resisting molten zinc corrosion and preparation method and equipment thereof |
| CN113265573A (en) * | 2021-04-29 | 2021-08-17 | 四川大学 | High-strength high-toughness high-entropy alloy ceramic and preparation method thereof |
| CN115029601A (en) * | 2022-07-20 | 2022-09-09 | 上海海事大学 | High-entropy alloy/hard ceramic synergistic strengthening composite coating and preparation method thereof |
| CN115029601B (en) * | 2022-07-20 | 2023-12-19 | 上海海事大学 | High-entropy alloy/hard ceramic synergistic reinforced composite coating and preparation method thereof |
| CN115323244A (en) * | 2022-08-18 | 2022-11-11 | 湖南三泰新材料股份有限公司 | High-entropy alloy material and preparation method thereof |
| CN115323244B (en) * | 2022-08-18 | 2023-08-18 | 湖南三泰新材料股份有限公司 | High-entropy alloy material and preparation method thereof |
| RU2804391C1 (en) * | 2022-12-28 | 2023-09-28 | федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский политехнический университет Петра Великого" (ФГАОУ ВО "СПбПУ") | Method for producing high-entropy alloy boride |
| RU2810140C1 (en) * | 2022-12-28 | 2023-12-22 | федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский политехнический университет Петра Великого" (ФГАОУ ВО "СПбПУ") | Method for producing 3d objects of complex shape from high-entropy alloy ceramics using jet application of binder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102787267A (en) | Multiple boride metal ceramic based on high-entropy alloy adhesion agent and preparation method thereof | |
| CN102628138B (en) | Trace cobalt-containing tungsten carbide without bonding phase and preparation method thereof | |
| CN100569978C (en) | Nano WC-Co composite powder modified Ti (CN) based ceramic metal and preparation method thereof | |
| CN105886871B (en) | A kind of high strength cemented carbide and preparation method using titanium carbide as main component | |
| CN103741000B (en) | Ultra-fine Grained gradient hard alloy of a kind of rich surface cobalt and preparation method thereof | |
| CN102534335A (en) | Rare earth alloy powder-modified Ti(C,N)-based metal ceramic and preparation method thereof | |
| CN101967593A (en) | Ultrafine grain solid carbide material containing rare earth and preparation method thereof | |
| CN107829054A (en) | A kind of high-strength tenacity base titanium carbonitride material and preparation method thereof | |
| CN103361533A (en) | Titanium carbide-based solid solution metal ceramic and preparation method thereof | |
| CN109338193B (en) | Coreless-ring structure metal ceramic alloy and preparation method thereof | |
| CN109778042B (en) | High-strength tungsten-based alloy and preparation method thereof | |
| CN102154582A (en) | Hard alloy taking nickel-aluminium intermetallic compound Ni3Al as binding phase and preparation method | |
| CN102140603A (en) | Hard alloy using nickel-aluminum intermetallic compound Ni3Al as bonding phase and preparation method thereof | |
| CN104630590B (en) | A kind of composite hard alloy material and preparation method thereof | |
| CN112647006B (en) | Tungsten carbide-based hard alloy and preparation method thereof | |
| CN104674098B (en) | Cermet material based on TiCN-(Ti,M)CN core mixed structure and preparation method thereof | |
| CN103774021B (en) | The preparation method of Ti (C, N) based ceramic metal | |
| CN111004954A (en) | Wear-resistant corrosion-resistant Ti (C, N) -based metal ceramic and preparation method thereof | |
| CN107245628A (en) | Make Hardmetal materials of Binder Phase and preparation method thereof using Ni Cu continuous solid solutions | |
| CN103276268A (en) | High-performance hard alloy and manufacturing method thereof | |
| CN102936137A (en) | Al2O3-TiC/Al2O3-TiC-CaF2 self-lubricating lamination ceramic drawing mold material | |
| CN101210291B (en) | Method for producing ultra-fine crystal particle cermet | |
| CN109053191B (en) | Titanium carbonitride based cermet without binder phase and preparation method thereof | |
| CN105986139B (en) | A kind of titanium carbide ceramic and preparation method thereof | |
| CN102151834B (en) | Al2O3-cobalt-based adhesive phase-containing ultrafine hard alloy powder and preparation method and use thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121121 |