CN105917014A - Ceramic steel material and preparation method thereof - Google Patents
Ceramic steel material and preparation method thereof Download PDFInfo
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- CN105917014A CN105917014A CN201480001908.2A CN201480001908A CN105917014A CN 105917014 A CN105917014 A CN 105917014A CN 201480001908 A CN201480001908 A CN 201480001908A CN 105917014 A CN105917014 A CN 105917014A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/14—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on borides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0292—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with more than 5% preformed carbides, nitrides or borides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
Abstract
Disclosed is a ceramic steel material, which comprises a ceramic phase and a metallic phase. The ceramic phase is a boride of Fe, Co and Ni and any one or more of metallic elements of the fourth, fifth and sixth periods of Groups IVB, VB and VIB; the metallic phase is an alloy composed of Mo and one or more elements of Fe, Co and Ni. The ceramic material has the characteristics of high hardness, wear resistance, corrosive resistance and high temperature resistance and is applicable to manufacturing of cutters, cutting tools as well as a wide variety of wear-resistant, corrosion-resistant and high-temperature-resistance materials and various structural parts composed thereof. In addition, the ceramic steel material has excellent welding performance when welded with metallic materials such as steel, can better meet the demands of people during daily life, and is applied in the fields like industry, agriculture, machining, medical instruments, etc.; also provided is a preparation method of the ceramic steel material.
Description
The invention relates to a composite material, in particular to a ceramic steel material and a preparation method thereof.
With the development of social science and technology and the continuous improvement of the living standard of people, the requirements of people on daily necessities are higher and higher. People have put higher demands on the aspects of the appearance, the aesthetic appearance and the like, but also not only the quality and the function of products. The cutter and the cutting tool are used as one of necessary appliances of a kitchen and are in the environments of water, water vapor, salt, acid and the like all the year round, so that the corrosion resistance of the material is greatly tested; meanwhile, the cutter and the cutting tool are mostly used for cutting food, so the requirement on the strength and the hardness of the material is higher.
At present, materials for manufacturing cutters and cutting tools in common use in the market comprise stainless steel, ceramics and other materials. Since 1913, stainless steel is popular with people due to the characteristics of high toughness, corrosion resistance and the like, and lays a material and technical foundation for the development of modern industry and the progress of science and technology. Therefore, plays an important role in the production of cutters and cutting tools. However, because of its low hardness and poor wear resistance, the cutting edge is easily blunt and not sharp during use, and needs to be ground frequently. Zirconium dioxide ceramic cutting tool, cutting tool is a new type of cutting tool, cutting tool developed in recent years, and has the characteristics of high hardness, wear resistance and high temperature resistance. However, the zirconium dioxide ceramic cutting tool and cutting tool have the fatal defects of high brittleness, poor impact resistance, very thin cutting edges of the cutting tool and cutting tool, and easy edge breakage and notch generation during use, so that the service life of the zirconium dioxide ceramic cutting tool and cutting tool is influenced. Therefore, in order to better meet the requirements of people in daily life, researchers are keen to research a composite material with good performances such as high hardness, wear resistance, corrosion resistance, high temperature resistance and the like.
The invention aims to solve the technical problem of providing a ceramic steel material with high hardness, wear resistance, corrosion resistance, high temperature resistance and good toughness and a preparation method thereof.
The technical scheme adopted for solving the technical problems of the invention is as follows: providing a ceramic steel material, wherein the ceramic steel material comprises a ceramic phase and a metal phase, and the ceramic phase is a boride of any one or more metal elements in groups IV, VB and VIB, fourth, fifth and sixth periods; the metal phase is an alloy consisting of Mo and one or more elements of Fe, Co and Ni.
Preferably, the ceramic steel material further comprises additives, and the additives are C and one or more of V, Cr, Mn and Cu.
Preferably, the ceramic steel material comprises 5-10% of B, 0-50% of Ti, 0-50% of V, 0-50% of Cr, 0-50% of Zr, 0-50% of Nb, 20-60% of Mo, 10-40% of Fe, 0-15% of Ni and 0-20% of Co in percentage by mass; the mass percentage of each element in the additive is not more than 5%.
The technical scheme adopted for solving the other technical problem of the invention is as follows: the preparation method of the ceramic steel material is characterized by comprising the following steps:
wet-grinding and mixing the proportioned raw material (ceramic phase raw material and metal phase raw material) powder and a ball-milling medium for 20-100 h, and adding a forming agent with the mass ratio of 2-6%, wherein the grinding ball is one of a hard alloy ball, a stainless steel ball and a corundum ball, and the ball-material mass ratio is (3-10): 1;
drying the slurry obtained after mixing, sieving the obtained powder by a 200-400 mesh sieve, and pressing the powder under the pressure of 100-400 MPa to prepare a pressed blank;
and sintering the pressed compact at 1200-1500 ℃ to obtain the ceramic steel material.
Preferably, the ball milling medium is one of absolute ethyl alcohol, gasoline, acetone, hexane, carbon tetrachloride and benzene.
Preferably, the forming agent is one of paraffin composed of normal alkane, zinc stearate, polyvinyl butyral absolute ethanol solution and rubber gasoline solution.
Preferably, the drying method is one of vacuum drying, steam drying and atomization drying.
Preferably, the sintering is one of vacuum sintering, hot isostatic pressing sintering, activation sintering and spark plasma sintering.
Compared with the prior art, the ceramic steel material comprises a ceramic phase and a metal phase, wherein the ceramic phase is a boride of any one or more metal elements in groups IV, VB and VIB, including periods IV, VB and VIB, and the metal phase is an alloy consisting of Mo and one or more of Fe, Co and Ni. The ceramic steel material has the characteristics of high hardness, wear resistance, corrosion resistance and high temperature resistance, can be used for manufacturing cutters, cutting tools, various wear-resistant, corrosion-resistant and high temperature-resistant materials and various structural members formed by the materials, has good welding performance with metal materials such as steel, and the like, can better meet the requirements of people in daily life, and can be applied to the fields of industry, agriculture, machining, medical appliances and the like. In addition, by adopting the preparation method of the invention, the raw materials react in the sintering process to generate boride or multi-boride in situ, which provides high hardness for ceramic steel materials.
FIG. 1 is a microstructure of a ceramic steel material according to the present invention under a scanning electron microscope.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The boride of any one or more of metal elements in the fourth, fifth and sixth periods of Fe, Co, Ni and IVB, VB and VIB groups is used as a ceramic phase, and the alloy consisting of Mo and one or more of Fe, Co and Ni is used as a metal phase, and a small amount of additives are added. The raw materials can be added in the form of alloy or compound or simple substance, the raw material (ceramic phase raw material and metal phase raw material) powder which is accurately proportioned and a ball-milling medium are wet-milled and mixed for 20-100 h, a forming agent with the mass ratio of 2-6% is added, the grinding ball is one of hard alloy ball, stainless steel ball and corundum ball, and the ball-material mass ratio is (3-10): 1; drying the slurry obtained after mixing, sieving the obtained powder by a 200-400 mesh sieve, and preparing the powder into a green compact under the pressure of 100-400 MPa; and sintering the pressed compact at 1200-1500 ℃ to obtain the ceramic steel material.
By adopting the preparation method, the raw materials react in the sintering process to generate boride or multi-boride in situ, which provides high hardness for ceramic steel materials. The ceramic phase and the metal phase precipitated in situ have better bonding strength, so the ceramic steel material also has higher toughness. Therefore, the ceramic steel material has excellent comprehensive mechanical properties. The hardness of the ceramic steel material can reach 50-75 HRC, the ceramic steel material is equivalent to zirconium dioxide ceramic, and the bending strength can reach 1200-2300 MPa, which is far higher than that of the zirconium dioxide ceramic. Compared with the existing widely used stainless steel, the ceramic steel material has higher hardness, the wear resistance of the ceramic steel material can be improved by more than one time, and the ceramic steel material has very excellent chemical stability, so that the ceramic steel material is suitable for being used as a cutter and a cutting tool which are in working environments of water, steam, salt, acid, alkali and the like throughout the year, and various wear-resistant, corrosion-resistant and high-temperature-resistant materials and various structural members consisting of the materials. In addition, the ceramic steel material and the steel have better welding performance, so that the ceramic steel cutter, a cutting tool, various wear-resistant, corrosion-resistant and high-temperature-resistant materials and the production cost of various structural parts formed by the materials can be reasonably controlled only by welding a small amount of the ceramic steel material on the stainless steel, and the large-scale popularization and application are easy to realize.
The ceramic steel material has the characteristics of high hardness, wear resistance, corrosion resistance and high temperature resistance, can be used for manufacturing cutters, cutting tools, various wear-resistant, corrosion-resistant and high temperature-resistant materials and various structural members formed by the materials, has good welding performance with metal materials such as steel, and the like, can better meet the requirements of people in daily life, and can be applied to the fields of industry, agriculture, machining, medical appliances and the like. The ceramic steel material comprises a ceramic phase and a metal phase, wherein the ceramic phase is a boride of any one or more metal elements in metal elements of groups IV, VB and VIB in the fourth, fifth and sixth periods, and the metal phase is an alloy consisting of Mo and one or more of Fe, Co and Ni. The raw materials can be added in the form of alloy or compound or simple substance, and the ceramic steel material is obtained by ball-milling, mixing, drying, sieving, pressing and sintering the raw materials which are accurately proportioned.
The cutting tool and the cutting tool made of the ceramic steel material have the advantages of a stainless steel cutting tool, a zirconium dioxide ceramic cutting tool and a cutting tool, and the defects of the stainless steel cutting tool, the cutting tool and the zirconium dioxide ceramic cutting tool are avoided, so that the ceramic steel cutting tool and the cutting tool can be used for replacing the existing stainless steel cutting tool, the zirconium dioxide ceramic cutting tool and the cutting tool, the ceramic steel cutting tool is durable, reasonable in cost and easy to popularize and use in a large range.
In order to illustrate the technical solution of the present invention, the following is illustrated by specific examples:
example 1:
a preparation method of a ceramic steel material comprises the following steps: 20wt.% (20 mass percent) of NiB,40wt.% of Mo,5wt.% of Cr,10wt.% of Ni,1wt.% of C and Fe powders (balance) and additionally 2.5wt.% of paraffin were ball-milled and mixed. The mass ratio of the hard alloy balls to the mixed powder (NiB, Mo, Cr, Ni, C and Fe powder) is 8:1, absolute ethyl alcohol is added as a ball milling medium, and wet milling is carried out in a ball mill for 100 hours (h). Then dried under vacuum at 70 ℃ for 7 hours, and the obtained powder is sieved by a 325-mesh sieve and then is pressed and molded. And finally, sintering the sample subjected to compression molding in vacuum at 1220 ℃ for 15 hours to obtain the ceramic steel material.
Example 2:
a preparation method of a ceramic steel material comprises the following steps: 20wt.% of FeB, 60wt.% of Mo,5wt.% of Cr,10wt.% of Ni,1wt.% of C and Fe powders (balance) and additionally 2.2wt.% of paraffin were ball-milled and mixed. The mass ratio of the hard alloy balls to the mixed powder (FeB, Mo, Cr, Ni, C and Fe powder) is 6:1, acetone is added as a ball milling medium, and wet milling is carried out in a ball mill for 85 h. Then vacuum drying at 80 deg.C for 6h, sieving with 325 mesh sieve, and press molding. And finally, sintering the sample subjected to compression molding in vacuum for 14 hours at 1250 ℃ to obtain the ceramic steel material.
Example 3:
a preparation method of a ceramic steel material comprises the following steps: ball milling and mixing 20wt.% of CoB, 40wt.% of W, 20wt.% of Co, 10wt.% of Ni,1wt.% of C and Fe powder (balance), and additionally 2wt.% of rubber gasoline solution. The mass ratio of the stainless steel balls to the mixed powder (CoB, W, Co, Ni, C and Fe powder) is 5:1, hexane is added as a ball milling medium, and wet milling is carried out in a ball mill for 65 h. Then vacuum drying at 60 deg.C for 10h, sieving the obtained powder with 300 mesh sieve, and press molding. And finally, carrying out hot isostatic pressing sintering on the sample subjected to compression molding at 1280 ℃ for 12 hours to obtain the ceramic steel material.
Example 4:
a preparation method of a ceramic steel material comprises the following steps: 50wt.% of TiB220wt.% Mo,5wt.% Cr, 15wt.% Ni,1wt.% C and Fe powders (balance) and additionally 2.5wt.% rubber gasoline solution. Stainless steel ball and mixed powder (TiB)2Mo, Cr, Ni, C and Fe powder) in a mass ratio of 3:1, adding carbon tetrachloride as a ball milling medium, and wet milling in a ball mill for 80 h. Then atomizing and drying for 8h at the temperature of 90 ℃, and pressing and molding the obtained powder after sieving by a 200-mesh sieve. And finally, carrying out hot isostatic pressing sintering on the sample subjected to compression molding at 1300 ℃ for 12h to obtain the ceramic steel material.
Example 5:
preparation method of ceramic steel materialThe method comprises the following steps: 50wt.% of ZrB220wt.% of Mo,5wt.% of Cr, 15wt.% of Ni,1wt.% of C and Fe powders (balance) and additionally 3wt.% of zinc stearate. Corundum ball and mixed powder (ZrB)2Mo, Cr, Ni, C and Fe powder) in a mass ratio of 5:1, adding benzene as a ball milling medium, and carrying out wet milling in a ball mill for 90 hours. Then atomizing and drying for 5h at 70 ℃, and pressing and molding the obtained powder after sieving by a 400-mesh sieve. And finally, sintering the sample subjected to compression molding for 2 hours by discharging plasma at 1280 ℃ to obtain the ceramic steel material.
Example 6:
a preparation method of a ceramic steel material comprises the following steps: 50wt.% of NbB220wt.% of Mo,5wt.% of Cr, 15wt.% of Ni,1wt.% of C and Fe powder (balance) and 3wt.% of polyvinyl butyral absolute ethanol solution are added for ball milling and mixing. Corundum balls and mixed powders (NbB)2Mo, Cr, Ni, C and Fe powder) in a mass ratio of 5:1, adding gasoline as a ball milling medium, and carrying out wet milling in a ball mill for 75 h. Then steam drying at 90 deg.C for 8h, sieving the obtained powder with 400 mesh sieve, and press molding. And finally, activating and sintering the sample subjected to compression molding at 1250 ℃ for 15h to obtain the ceramic steel material.
Example 7:
a preparation method of a ceramic steel material comprises the following steps: 25wt.% of FeB, 35wt.% of Mo,10 wt.% of Cr, 5wt.% of Ni, 0.6wt.% of C, 2wt.% of V, 5wt.% of Cu and Fe powders (balance) and additionally 3wt.% of paraffin were ball milled and mixed. The mass ratio of the corundum balls to the mixed powder (FeB, Mo, Cr, Ni, C, V, Cu and Fe powder) is 6:1, gasoline is added as a ball milling medium, and wet milling is carried out in a ball mill for 60 hours. Then vacuum drying at 90 deg.C for 8h, sieving the obtained powder with 400 mesh sieve, and press molding. And finally, sintering the sample subjected to compression molding in vacuum at 1300 ℃ for 15h to obtain the ceramic steel material.
TABLE 1 hardness and flexural Strength of ceramic Steel materials
| Examples | Hardness (HRC) | Bending strength (MPa) |
| 1 | 65 | 2017 |
| 2 | 68 | 2278 |
| 3 | 67 | 1882 |
| 4 | 72 | 1635 |
| 5 | 75 | 1340 |
| 6 | 71 | 1390 |
| 7 | 70 | 1720 |
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (4)
- A ceramic steel material is characterized in that: the ceramic steel material comprises a ceramic phase and a metal phase, wherein the ceramic phase is a boride of any one or more metal elements in the fourth, fifth and sixth periods of metal elements in groups IVB, VB and VIB; the metal phase is an alloy consisting of Mo and one or more elements of Fe, Co and Ni.
- Ceramic steel material according to claim 1, characterized in that: the ceramic steel material further comprises an additive, wherein the additive is C and one or more of V, Cr, Mn and Cu.
- The ceramic steel material according to claim 1 to 2, characterized in that: the ceramic steel material comprises, by mass, 5-10% of B, 0-50% of Ti, 0-50% of V, 0-50% of Cr, 0-50% of Zr, 0-50% of Nb, 20-60% of Mo, 10-40% of Fe, 0-15% of Ni and 0-20% of Co; the mass percentage of each element in the additive is not more than 5%.
- A ceramic steel material according to any one of claims 1 to 3, for use in the manufacture of tools, cutting tools, and structural components of wear, corrosion and high temperature resistant materials and compositions thereof.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/094719 WO2016101156A1 (en) | 2014-12-23 | 2014-12-23 | Ceramic steel material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105917014A true CN105917014A (en) | 2016-08-31 |
Family
ID=56148893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480001908.2A Pending CN105917014A (en) | 2014-12-23 | 2014-12-23 | Ceramic steel material and preparation method thereof |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20160348219A1 (en) |
| EP (1) | EP3192887A1 (en) |
| CN (1) | CN105917014A (en) |
| WO (1) | WO2016101156A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521283A (en) * | 2016-12-04 | 2017-03-22 | 丹阳市宸兴环保设备有限公司 | Anti-abrasion ceramic steel pipe composite material |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1404734A (en) * | 1973-01-18 | 1975-09-03 | Nippon Tungsten | Boride containing hard alloy |
| CN1124785A (en) * | 1994-12-13 | 1996-06-19 | 北京科技大学 | Making of steel bonded carbide using reaction sintering process |
| CN1198780A (en) * | 1995-10-02 | 1998-11-11 | 陶氏化学公司 | Singal step synthesis and densification of ceramic-ceramic and ceramic-metal composite materials |
| CN1203133A (en) * | 1997-06-21 | 1998-12-30 | 三星重工业株式会社 | Engine tappet of high abrasion resistance and method for manufacturing same |
| WO2012133328A1 (en) * | 2011-03-30 | 2012-10-04 | 東洋鋼鈑株式会社 | Hard sintered alloy |
| CN102787267A (en) * | 2012-09-04 | 2012-11-21 | 四川大学 | Multiple boride metal ceramic based on high-entropy alloy adhesion agent and preparation method thereof |
| CN103468994A (en) * | 2013-09-17 | 2013-12-25 | 北京科技大学 | Method for preparing molybdenum nickel chromium boron multivariant boride metal ceramic |
| CN103890204A (en) * | 2011-10-17 | 2014-06-25 | 山特维克知识产权股份有限公司 | Method of making a cemented carbide or cerment powder by using a resonant acoustic mixer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3999952A (en) * | 1975-02-28 | 1976-12-28 | Toyo Kohan Co., Ltd. | Sintered hard alloy of multiple boride containing iron |
| US4194900A (en) * | 1978-10-05 | 1980-03-25 | Toyo Kohan Co., Ltd. | Hard alloyed powder and method of making the same |
| JPS58217656A (en) * | 1982-06-08 | 1983-12-17 | Hitachi Metals Ltd | Super hard alloy |
| CN1502714A (en) * | 2002-11-26 | 2004-06-09 | 山东大学 | Ternary boride base metal ceramic covering layer material and preparation technology thereof |
-
2014
- 2014-12-23 US US14/646,661 patent/US20160348219A1/en not_active Abandoned
- 2014-12-23 EP EP14833447.7A patent/EP3192887A1/en not_active Withdrawn
- 2014-12-23 CN CN201480001908.2A patent/CN105917014A/en active Pending
- 2014-12-23 WO PCT/CN2014/094719 patent/WO2016101156A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1404734A (en) * | 1973-01-18 | 1975-09-03 | Nippon Tungsten | Boride containing hard alloy |
| CN1124785A (en) * | 1994-12-13 | 1996-06-19 | 北京科技大学 | Making of steel bonded carbide using reaction sintering process |
| CN1198780A (en) * | 1995-10-02 | 1998-11-11 | 陶氏化学公司 | Singal step synthesis and densification of ceramic-ceramic and ceramic-metal composite materials |
| CN1203133A (en) * | 1997-06-21 | 1998-12-30 | 三星重工业株式会社 | Engine tappet of high abrasion resistance and method for manufacturing same |
| WO2012133328A1 (en) * | 2011-03-30 | 2012-10-04 | 東洋鋼鈑株式会社 | Hard sintered alloy |
| CN103890204A (en) * | 2011-10-17 | 2014-06-25 | 山特维克知识产权股份有限公司 | Method of making a cemented carbide or cerment powder by using a resonant acoustic mixer |
| CN102787267A (en) * | 2012-09-04 | 2012-11-21 | 四川大学 | Multiple boride metal ceramic based on high-entropy alloy adhesion agent and preparation method thereof |
| CN103468994A (en) * | 2013-09-17 | 2013-12-25 | 北京科技大学 | Method for preparing molybdenum nickel chromium boron multivariant boride metal ceramic |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3192887A1 (en) | 2017-07-19 |
| WO2016101156A1 (en) | 2016-06-30 |
| US20160348219A1 (en) | 2016-12-01 |
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