CN105506618B - The method for improving 42CrMo Steel Properties in laser melting coating - Google Patents
The method for improving 42CrMo Steel Properties in laser melting coating Download PDFInfo
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- CN105506618B CN105506618B CN201511014273.2A CN201511014273A CN105506618B CN 105506618 B CN105506618 B CN 105506618B CN 201511014273 A CN201511014273 A CN 201511014273A CN 105506618 B CN105506618 B CN 105506618B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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Abstract
The present invention discloses the method for improving 42CrMo Steel Properties in laser melting coating, after high-entropy alloy powder and ethanol mixing, it is coated uniformly on substrate material surface, cladding layer can be obtained by laser melting coating after drying, improve material hardness and wearability, high-entropy alloy powder is equimolar ratio between described Fe, Ni, Cr, Al, Si, the mol ratio x of the Mn is 0~1 by iron, nickel, chromium, aluminium, silicon and manganese element powder constituent.
Description
The present patent application is parent application " laser melting coating high-entropy alloy powder and cladding layer preparation method and purposes "
Divisional application, the parent application applying date are on October 10th, 2013, parent application Application No. 2013104711065.
Technical field
The present invention relates to more pivot laser cladding of material and cladding layer preparation field, more particularly, and in particular to one
Kind laser melting coating high-entropy alloy powder and cladding layer preparation method and purposes.
Background technology
Laser melting coating is a kind of process for modifying surface fast-developing in recent years, and it in substrate surface by adding cladding material
Material, and using the laser beam method that is allowed to the consolidation together with substrate surface thin layer of high-energy-density, so as to be formed in substrate surface
The cladding layer of metallurgical binding.Traditional laser cladding powder is the alloy system using single pivot as matrix, such as Ni-based, iron-based,
Cobalt-based self-fluxing alloyed powder, and more pivot high-entropy alloys are last century the nineties is carried by China Taiwan's scholars professor Ye Junwei
A kind of novel alloy gone out, the proposition of such a alloy design concept, has broken the design philosophy based on conventional alloys single element, has opened
A new alloy design field is opened.
According to Gibbs phases rule, when alloy is made up of a variety of essential elements, F=C-P+1, F are the free degree, and C is group
First number, P are the number of phases.At constant pressure, balance number of phases P=C+1 maximum in a C component system.Therefore, high-entropy alloy tends to
Simple solid solution is formed, rather than forms intermetallic compound so that the sum institute regular well below Gibbs phases of phase in alloy
The numerical value of permission.High entropic effect is the reason for causing this phenomenon.Because high entropic effect inhibits weld metal zone brittle intermetallic thing
Occur, high-entropy alloy solidification after will not only form numerous metallic compound, formed on the contrary simple body-centered cubic or
Face-centered cubic phase even noncrystalline, the gained number of phases is well below the number of phases that balance one after another is predicted.Therefore, appropriate alloy is passed through
Formula design, it is excellent that high rigidity, high processing hardening, high temperature resistant softening, high temperature oxidation resisting, corrosion-resistant, high resistivity etc. can be obtained
Characteristic, can be applied to exotic material, chemical industry, naval vessel corrosion resistant material, aircraft turbine blades, the heat proof material of high temperature furnace,
Have great application prospect.
But due to the density, molten between different types of metallic element in high-entropy alloy powder and its between matrix material
Larger difference be present in the thermophysical property such as point, specific heat and the coefficient of expansion, be difficult to obtain when being directly used in laser melting coating surface it is continuous,
Shaping is good, the uniform cladding layer of composition.Therefore, the high-entropy alloy powder that preparation is suitable for laser melting coating is to seem particularly must
Will.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of high-entropy alloy powder material and cladding layer
Preparation method, obtain and shape good cladding layer, improve material hardness and wearability.
The technical purpose of the present invention is achieved by following technical proposals：
Laser melting coating high-entropy alloy powder, it is made up of Fe, Ni, Cr, Al, Si and Mn element powders, i.e. alloy powder group
Into FeNiCrAlSiMnx is expressed as, mol ratio and its span that x is Mn are 0~1, specifically, the Fe, Ni, Cr,
It is equimolar ratio between Al, Si, adjustment metal Mn dosage, so that it uses mole and Si's (or remaining four kinds of element)
Mol ratio is 0~1, preferably 0.3-1, more preferred 0.5-0.7.
When being prepared, the mol ratio for being first according to respective element carries out proportioning calculating, each component of precise
It is sufficiently mixed after quality uniformly, the powder of various elements is weighed for example with electronic scale, is ground in mortar
Mill half an hour makes it well mixed.Wherein from each component be purity be more than or equal to 99% powder, particle diameter be 100-
500 mesh, preferably 200-300 mesh.
It is applied to using the alloy powder of the present invention in laser melting coating welding, by laser melting coating high-entropy alloy powder and second
After alcohol mixing, substrate material surface is coated uniformly on, cladding layer can be obtained by laser melting coating after drying.
The pure absolute ethyl alcohol of wherein described ethanol Analysis about Selection, in laser melting coating high-entropy alloy powder and alcohol mixture
In, it is made up of according to mass percent 92~95% alloy powder and 5~8% ethanol.
Upon mixing, pasty state or paste are formed, in order to continue to coat in substrate material surface, it is coated after in matrix material
Expect that surface forms preformed layer, the preformed layer thickness is 1-2mm.
It is 42CrMo steel from matrix material when carrying out laser melting coating, technological parameter is：Laser power be 1550~
1650KW, spot diameter are 0.8~1.0mm, and sweep speed is 150~200mm/min, defocusing amount 0mm, and protective gas uses
Argon gas or helium, gas flow are 20~25L/min；It is preferred that laser power is 1580~1620KW, spot diameter is 0.8~
1.0mm, sweep speed are 180~200mm/min, defocusing amount 0mm, and protective gas uses argon gas, gas flow is 22~
25L/min。
Compared with prior art, the invention has the advantages that：
(1) in alloy powder of the present invention, the maximum performance that each element is given full play to outside basic element iron, Ni master are removed
It is used to improve material wetability and improves cladding layer capability, Cr mainly improves cladding layer hardness by solution strengthening and is used for
Cladding layer corrosion resistance is improved, Al mainly improves the high temperature oxidation resistance of cladding layer, and brilliant by solution strengthening effect and increase
Boundary's skid resistance improves cladding layer hardness.Further, since aluminium surface easily aoxidizes the oxide-film to form densification, add in the alloy
Al is added to improve the corrosion resistance of cladding layer, Si and Mn are mainly used in deoxidation.
(2) the invention provides a kind of high-entropy alloy powder and cladding layer preparation method, this method technique is simple, implements letter
Just, moderate cost, there is application value.
(3) present invention is prepared for that shaping is good, hardness is higher, the preferable cladding layer of wearability.In addition, with other method phase
Than the coating and base material bond strength that laser melting coating obtains are higher.
Brief description of the drawings
Fig. 1 is FeNiCrAlSi cladding layer macro morphologies.
Fig. 2 is FeNiCrAlSiMn cladding layer macro morphologies.
Fig. 3 is FeNiCrAlSi cladding layer overall pictures.
Fig. 4 is FeNiCrAlSiMn cladding layer overall pictures.
Fig. 5 is FeNiCrAlSi cladding layer metallographic structures.
Fig. 6 is FeNiCrAlSiMn cladding layer metallographic structures.
Embodiment
Technical scheme is further illustrated with reference to specific embodiment.Each metallic element source such as following table institute
Show：
| Nomenclature of drug | Molecular formula | Purity | Specification | Manufacturer |
| Iron powder | Fe | >=99% | Analyze pure | The factory of Tianjin chemical reagent one |
| Chromium powder | Cr | >=99% | Analyze pure | Tianjin recovery fine chemistry industry research institute |
| Nickel powder | Ni | >=99.5% | Analyze pure | The factory of Hubei Tianmen chemical reagent two |
| Aluminium powder | Al | >=99% | Analyze pure | Tianjin Feng Chuan chemical reagent Co., Ltd |
| Silica flour | Si | >=99% | Analyze pure | Tianjin recovery fine chemistry industry research institute |
| Manganese powder | Mn | >=99.8% | Analyze pure | Tianjin recovery fine chemistry industry research institute |
Matrix material selects 42CrMo steel, using mechanical grinding remove oxide, degreased using acetone, its chemistry into
Divide as shown in following table (mass fraction %)
| C | Mn | Si | Cr | Mo | Ni | Cu |
| 0.38~0.45 | 0.50~0.80 | 0.17~0.37 | 0.90~1.20 | 0.15~0.25 | ≤0.030 | ≤0.030 |
Implemented by the following method：
1. carry out FeNiCrAlSiMnx (wherein x is mol ratio, and its span is 0~1) high entropy according to mol ratio to close
Golden powder mixture ratio is calculated, and the powder of various elements is weighed using electronic scale, is ground half an hour in mortar and is made it well mixed.
2. after 92~95% laser cladding powder and 5~8% ethanol are mixed into pasty state or paste, coated in matrix
Material surface, preformed layer thickness are 1-2mm, and cladding layer can be obtained by laser melting coating after air-drying.
3. selection laser uses JK2003SM types Nd：YAG carries out laser melting coating.
Case study on implementation 1
1. carry out FeNiCrAlSiMnx (taking x=0) high-entropy alloy powder proportioning according to mol ratio to calculate：Fe is
20mol%, Ni 20mol%, Cr 20mol%, Al 20mol%, Si 20mol%, various members are weighed using electronic scale
The powder of element.
2. pour into mortar, grinding half an hour in mortar makes it well mixed.
3. the laser cladding powder that will be prepared, after taking 92% and 8% ethanol to be mixed into pasty state or paste, it is coated in
42CrMo steel surfaces, coating thickness 1mm, laser melting coating is carried out after air-drying.
4. laser uses JK2003SM types Nd：YAG, laser cladding technological parameter are：Laser power is 1550KW, hot spot
A diameter of 0.8mm, sweep speed 180mm/min, defocusing amount 0mm, protective gas use argon gas, gas flow 25L/
min。
5. being corroded after laser melting coating using chloroazotic acid, metallograph (the metallographic structure facilities for observation of cladding layer is obtained
Using OLYMPUS-GX51 metallographic microscopes, manufacturer：Japanese OLYMPUS (Olympus) company).
The microhardness of cladding layer is measured using automatic turret digital display sclerometer, the experimental results are shown inthe following table, laser
Hardness has reached 512.0HV after cladding, is significantly improved than mother metal.
Using MM-200 type determination of wear testing machine, its wearability, specimen size are 7 × 7 × 25mm, and friction duty is
Dry grinding sliding friction, is loaded as 5kg, rotating speed 200r/min, experimental period 1h；(the measurement of front and rear quality is measured with electronic scale
It is preceding to be cleaned with ultrasonic washing instrument), the experimental results are shown inthe following table.As can be seen that the weightlessness of mother metal is 3.6 times of cladding layer,
Compared with mother metal, the wearability of cladding layer significantly improves.
| Quality/g before abrasion | Quality/g before abrasion | Weightlessness/mg | |
| Mother metal | 9.0479 | 9.0008 | 47.1 |
| FeNiCrAlSi cladding layers | 9.7562 | 9.7431 | 13.1 |
Case study on implementation 2
1. carry out FeNiCrAlSiMnx (taking x=1) high-entropy alloy powder proportioning according to mol ratio to calculate：Fe is
16.67mol%, Ni 16.67mol%, Cr 16.67mol%, Al 16.67mol%, Si 16.66mol%, Mn are
16.66mol%, total moles ratio are 100%, and the powder of various elements is weighed using electronic scale.
2. pour into mortar, grinding half an hour in mortar makes it well mixed.
3. the laser cladding powder that will be prepared, after taking 95% and 5% ethanol to be mixed into pasty state or paste, it is coated in
42CrMo steel surfaces, coating thickness 2mm, laser melting coating is carried out after air-drying.
4. laser uses JK2003SM types Nd：YAG, laser cladding technological parameter are：Laser power is 1550KW, hot spot
A diameter of 0.8mm, sweep speed 180mm/min, defocusing amount 0mm, protective gas use argon gas, gas flow 25L/
min。
5. being corroded after laser melting coating using chloroazotic acid, metallograph (the metallographic structure facilities for observation of cladding layer is obtained
Using OLYMPUS-GX51 metallographic microscopes, manufacturer：Japanese OLYMPUS (Olympus) company).
The microhardness of cladding layer is measured using automatic turret digital display sclerometer, the experimental results are shown inthe following table, laser
Average hardness has reached 489.2HV after cladding, is significantly improved than mother metal.
| Hardness number | Hardness number 2 | Hardness number 3 | Average hardness | |
| Mother metal | 286HV | 282HV | 285HV | 284HV |
| FeNiCrAlSiMn cladding layers | 481.5HV | 483.7HV | 502.5HV | 489.2HV |
Using MM-200 type determination of wear testing machine, its wearability, specimen size are 7 × 7 × 25mm, and friction duty is
Dry grinding sliding friction, is loaded as 5kg, rotating speed 200r/min, experimental period 1h；(the measurement of front and rear quality is measured with electronic scale
It is preceding to be cleaned with ultrasonic washing instrument), the experimental results are shown inthe following table.As can be seen that the weightlessness of mother metal is 3.32 times of cladding layer,
Compared with mother metal, the wearability of cladding layer significantly improves.
| Quality/g before abrasion | Quality/g before abrasion | Weightlessness/mg | |
| Mother metal | 9.0479 | 9.0008 | 47.1 |
| FeNiCrAlSiMn cladding layers | 9.5063 | 9.4921 | 14.2 |
Case study on implementation 3
1. carrying out FeNiCrAlSiMnx (taking x=0.3) high-entropy alloy powder according to mol ratio matches each metallic element：
Fe, Ni, Cr, Al and Si are equimolar, and Mn is the 0.3 of Si molal quantitys, is well mixed and is used, with reference to above-mentioned case study on implementation
2. laser melting and coating process：Laser power is 1650KW, spot diameter 1.0mm, sweep speed 200mm/min,
Defocusing amount is 0mm, and protective gas uses helium, gas flow 20L/min
3. identical carry out performance test is used, it is as a result as shown in the table：
Hardness
| Hardness number | Hardness number 2 | Hardness number 3 | Average hardness | |
| Mother metal | 286HV | 282HV | 285HV | 284HV |
| FeNiCrAlSiMn0.3Cladding layer | 500.2HV | 519.7HV | 522.5HV | 514.1HV |
Wearability
| Quality/g before abrasion | Quality/g before abrasion | Weightlessness/mg | |
| Mother metal | 9.0479 | 9.0008 | 47.1 |
| FeNiCrAlSiMn0.3Cladding layer | 9.6503 | 9.5213 | 12.9 |
Case study on implementation 4
1. carrying out FeNiCrAlSiMnx (taking x=0.5) high-entropy alloy powder according to mol ratio matches each metallic element：
Fe, Ni, Cr, Al and Si are equimolar, and Mn is the 0.5 of Si molal quantitys, is well mixed and is used, with reference to above-mentioned case study on implementation
2. laser melting and coating process：Laser power is 1620KW, spot diameter 0.9mm, sweep speed 180mm/min,
Defocusing amount is 0mm, and protective gas uses helium, gas flow 22L/min
3. identical carry out performance test is used, it is as a result as shown in the table：
Hardness
| Hardness number | Hardness number 2 | Hardness number 3 | Average hardness | |
| Mother metal | 286HV | 282HV | 285HV | 284HV |
| FeNiCrAlSiMn0.5Cladding layer | 501.5HV | 523.7HV | 533.2HV | 519.5HV |
Wearability
| Quality/g before abrasion | Quality/g before abrasion | Weightlessness/mg | |
| Mother metal | 9.0479 | 9.0008 | 47.1 |
| FeNiCrAlSiMn0.5Cladding layer | 9.5267 | 9.4017 | 12.5 |
Case study on implementation 5
1. carrying out FeNiCrAlSiMnx (taking x=0.7) high-entropy alloy powder according to mol ratio matches each metallic element：
Fe, Ni, Cr, Al and Si are equimolar, and Mn is the 0.7 of Si molal quantitys, is well mixed and is used, with reference to above-mentioned case study on implementation
2. laser melting and coating process：Laser power is 1580KW, spot diameter 0.8mm, sweep speed 150mm/min,
Defocusing amount is 0mm, and protective gas uses helium, gas flow 20L/min
3. identical carry out performance test is used, it is as a result as shown in the table：
Hardness
| Hardness number | Hardness number 2 | Hardness number 3 | Average hardness | |
| Mother metal | 286HV | 282HV | 285HV | 284HV |
| FeNiCrAlSiMn0.7Cladding layer | 483.7HV | 500.5HV | 511.0HV | 498.4HV |
Wearability
| Quality/g before abrasion | Quality/g before abrasion | Weightlessness/mg | |
| Mother metal | 9.0479 | 9.0008 | 47.1 |
| FeNiCrAlSiMn0.7Cladding layer | 9.5719 | 9.4339 | 13.8 |
Exemplary description has been done to the present invention above, it should explanation, in the situation for the core for not departing from the present invention
Under, any simple deformation, modification or other skilled in the art can not spend the equivalent substitution of creative work equal
Fall into protection scope of the present invention.
Claims (5)
1. improve the method for 42CrMo Steel Properties in laser melting coating, it is characterised in that after high-entropy alloy powder and ethanol are mixed,
Substrate material surface is coated uniformly on, cladding layer can be obtained to improve microhardness and wearability by laser melting coating after drying
Can, in high-entropy alloy powder and alcohol mixture, according to mass percent by 92~95% alloy powder and 5~8%
Ethanol forms；It is 42CrMo steel from matrix material when carrying out laser melting coating, technological parameter is：Laser power be 1550~
1650kW, spot diameter are 0.8~1.0mm, and sweep speed is 150~200mm/min, defocusing amount 0mm, and protective gas uses
Argon gas or helium, gas flow are 20~25L/min；High-entropy alloy powder is by Fe, Ni, Cr, Al, Si and Mn element powders group
Into i.e. FeNiCrAlSiMnx, wherein being equimolar ratio between described Fe, Ni, Cr, Al, Si, the mol ratio x of the Mn is
0.5—0.7。
2. the method according to claim 1 for improving 42CrMo Steel Properties in laser melting coating, it is characterised in that from each
Component is the powder that purity is more than or equal to 99%, and particle diameter is 100-500 mesh.
3. the method according to claim 1 for improving 42CrMo Steel Properties in laser melting coating, it is characterised in that from each
Component is the powder that purity is more than or equal to 99%, and particle diameter is 200-300 mesh.
4. the method according to claim 1 for improving 42CrMo Steel Properties in laser melting coating, it is characterised in that closed in high entropy
Behind bronze end and ethanol mixing, form pasty state or paste, in order to continue to coat in substrate material surface, it is coated after in matrix
Material surface forms preformed layer, and the preformed layer thickness is 1-2mm.
5. the method according to claim 1 for improving 42CrMo Steel Properties in laser melting coating, it is characterised in that swashed
During light cladding, laser power is 1580~1620kW, and spot diameter is 0.8~1.0mm, and sweep speed is 180~200mm/
Min, defocusing amount 0mm, protective gas use argon gas, and gas flow is 22~25L/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511014273.2A CN105506618B (en) | 2013-10-10 | 2013-10-10 | The method for improving 42CrMo Steel Properties in laser melting coating |
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|---|---|---|---|
| CN201511014273.2A CN105506618B (en) | 2013-10-10 | 2013-10-10 | The method for improving 42CrMo Steel Properties in laser melting coating |
| CN201310471106.5A CN104141084B (en) | 2013-10-10 | 2013-10-10 | Laser melting coating high-entropy alloy powder and cladding layer preparation method and purposes |
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| CN201511014273.2A Expired - Fee Related CN105506618B (en) | 2013-10-10 | 2013-10-10 | The method for improving 42CrMo Steel Properties in laser melting coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105463443B (en) * | 2015-12-04 | 2018-06-12 | 山东开泰抛丸机械股份有限公司 | A kind of marine drilling platform corrosion resistant coating production |
| CN106011845B (en) * | 2016-07-08 | 2019-01-11 | 浙江工业大学 | The method of Hastelloy N alloy surface acquisition high-volume fractional reinforced phase |
| CN106191621B (en) * | 2016-08-16 | 2017-12-15 | 安徽瑞泰新材料科技有限公司 | It is prepared by cement rotary kiln support roller surface high-entropy alloy powder, preparation and its coating |
| CN108411299B (en) * | 2018-04-11 | 2019-09-24 | 辽宁工程技术大学 | A method of FeAlCrNiSiC system high entropy alloy material is prepared using welding and the double heat sources of laser |
| CN108504889B (en) * | 2018-04-28 | 2020-04-21 | 辽宁工程技术大学 | CrFeAlMgSi alloy composite material and laser sintering synthesis method |
| CN110804711A (en) * | 2018-08-06 | 2020-02-18 | 天津大学 | High-entropy alloy powder and preparation method and application of laser cladding layer |
| CN109082659B (en) * | 2018-10-26 | 2021-04-16 | 河海大学常州校区 | Preparation method of metal coating applied to corrosive environment |
| CN109848514A (en) * | 2019-03-18 | 2019-06-07 | 合肥工业大学 | A kind of steel substrate surface built-up welding multicomponent alloy powder coating is to enhance the method for abrasion resistance and hardness |
| CN110230056B (en) * | 2019-07-17 | 2021-06-11 | 哈尔滨工程大学 | Low-melting-point high-entropy alloy powder for magnesium-lithium alloy laser surface modification and preparation method and application thereof |
| CN110735078B (en) * | 2019-10-14 | 2020-08-28 | 中南大学 | CrFeMnMoSiZr high-entropy alloy porous material and preparation method thereof |
| CN111719147B (en) * | 2020-06-18 | 2022-02-25 | 内蒙古工业大学 | Material suitable for reproducing 35CrMnSiA and 42CrMo cutting teeth and laser cladding method |
| CN114774754B (en) * | 2022-04-12 | 2023-02-10 | 哈尔滨工业大学 | FeCrMnVSix high-entropy alloy coating and preparation method thereof |
| CN114951696B (en) * | 2022-05-10 | 2023-06-23 | 哈尔滨工业大学 | FeCrTiV manufactured on surface of ferrite/martensitic steel by laser additive 0.5 Ni 0.5 High entropy alloy coating and method |
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| CN1353204B (en) * | 2000-11-09 | 2012-05-23 | 国立清华大学 | High-irregularity multi-element alloy |
| JP4190720B2 (en) * | 2000-11-29 | 2008-12-03 | 國立清華大學 | Multi-component alloy |
| TWI347978B (en) * | 2007-09-19 | 2011-09-01 | Ind Tech Res Inst | Ultra-hard composite material and method for manufacturing the same |
| CN102828139A (en) * | 2012-09-28 | 2012-12-19 | 安徽工业大学 | High-entropy alloy powder used for spraying |
| CN103290404B (en) * | 2013-05-06 | 2015-11-18 | 浙江工业大学 | The preparation method of laser melting coating high-entropy alloy powder and high-entropy alloy coating |
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| CN104141084A (en) | 2014-11-12 |
| CN104141084B (en) | 2017-01-04 |
| CN105506618A (en) | 2016-04-20 |
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