JP2020164991A5 - - Google Patents
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- JP2020164991A5 JP2020164991A5 JP2020051224A JP2020051224A JP2020164991A5 JP 2020164991 A5 JP2020164991 A5 JP 2020164991A5 JP 2020051224 A JP2020051224 A JP 2020051224A JP 2020051224 A JP2020051224 A JP 2020051224A JP 2020164991 A5 JP2020164991 A5 JP 2020164991A5
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- sintered body
- metal
- pressure sintered
- body according
- pressure
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- 239000002245 particle Substances 0.000 claims 8
- 239000002184 metal Substances 0.000 claims 6
- 229910052751 metal Inorganic materials 0.000 claims 6
- 238000004519 manufacturing process Methods 0.000 claims 5
- 239000003870 refractory metal Substances 0.000 claims 4
- 238000005245 sintering Methods 0.000 claims 3
- 238000002844 melting Methods 0.000 claims 2
- 230000008018 melting Effects 0.000 claims 2
- 229910052750 molybdenum Inorganic materials 0.000 claims 1
- 229910052758 niobium Inorganic materials 0.000 claims 1
- 229910052715 tantalum Inorganic materials 0.000 claims 1
- 229910052721 tungsten Inorganic materials 0.000 claims 1
Claims (11)
前記硬質相粒子の平均粒径を２μｍ以下とするとともに、５族又は６族に属する２４００℃以上の高融点金属からなる前記金属結合相を質量％で１０～８０％の割合で含み、１０００℃における高温ビッカース硬さをＨｖ１２００以上としたことを特徴とする加圧焼結体。 A pressure sintered body in which hard phase particles mainly composed of Ti (C, N) are bonded by a metal bonded phase composed of a metal and the Vickers hardness at room temperature is Hv1500 or higher.
The average particle size of the hard phase particles is 2 μm or less, and the metal bonded phase made of a refractory metal belonging to Group 5 or Group 6 having a melting point of 2400 ° C. or higher is contained in a proportion of 10 to 80 % by mass, 1000. A pressure sintered body characterized in that the high temperature Vickers hardness at ° C is Hv1200 or higher.
２μｍ以下の平均粒径のＴｉ（Ｃ，Ｎ）からなる粒子に対して、２μｍ以下の平均粒径の５族又は６族に属する２４００℃以上の高融点金属からなる粒子を質量％で１０～８０％の割合で混合する混合工程と、１７００℃以上且つ前記高融点金属の融点以下の温度で加圧する加圧焼結工程と、を含むことを特徴とする加圧焼結体の製造方法。 It is a method for producing a pressure sintered body in which hard phase particles mainly composed of Ti (C, N) are bonded by a metal bonded phase composed of a metal and the Vickers hardness at room temperature and 1000 ° C. is Hv1500 or higher and Hv1200 or higher, respectively. hand,
Particles made of refractory metal at 2400 ° C or higher belonging to Group 5 or Group 6 having an average particle size of 2 μm or less are 10 to 10% by mass with respect to particles made of Ti (C, N) having an average particle size of 2 μm or less. A method for producing a pressure sintered body, which comprises a mixing step of mixing at a ratio of 80 % and a pressure sintering step of pressurizing at a temperature of 1700 ° C. or higher and lower than the melting point of the refractory metal. ..
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019066073 | 2019-03-29 | ||
| JP2019066073 | 2019-03-29 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2020164991A JP2020164991A (en) | 2020-10-08 |
| JP2020164991A5 true JP2020164991A5 (en) | 2022-07-07 |
| JP7429432B2 JP7429432B2 (en) | 2024-02-08 |
Family
ID=72715912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020051224A Active JP7429432B2 (en) | 2019-03-29 | 2020-03-23 | Pressure sintered body and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7429432B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6202787B2 (en) | 2012-05-31 | 2017-09-27 | 株式会社アライドマテリアル | Molybdenum heat-resistant alloy, friction stir welding tool, and manufacturing method |
-
2020
- 2020-03-23 JP JP2020051224A patent/JP7429432B2/en active Active
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