JPS5450408A - Superhard alloy and its preparation - Google Patents
Superhard alloy and its preparationInfo
- Publication number
- JPS5450408A JPS5450408A JP11771677A JP11771677A JPS5450408A JP S5450408 A JPS5450408 A JP S5450408A JP 11771677 A JP11771677 A JP 11771677A JP 11771677 A JP11771677 A JP 11771677A JP S5450408 A JPS5450408 A JP S5450408A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- atoms
- solid solution
- metal
- phase consisting
- 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
Abstract
PURPOSE: To improve the hardness of the alloy without impairing the sintering property, by making the superhard sintered alloy constituted of the hard phase consisting of the B1 solid solution of metal carbide, etc. and the binding phase consisting of the metal of the iron group contain a specified amount of oxygen.
CONSTITUTION: By sintering the alloy constituted of the hard phase consisting of the B1 solid solution containing the carbide of the element of the VI a group, such as WC, etc., one kind or more than two kinds out of the metals of the IV a, V a, and VI a groups, such as Ti, Ta, Nb, etc. and the nonmetals such as C, N, O, etc. and the binding phase consisting of the metal of the iron group, such as Co, etc., the superhard sintered alloy is prepared. At this time, as the atmosphere for sintering, CO of the partial pressure above 10 Torr is used at a temperature above 800°C. The alloy is made to contain O2 of a number of atoms of 0.5W30% of the total of the number of atoms of the elements of the IV a and V a groups in the B1 solid solution as the hard phase. In the case where the metal carbide in the solid solution is WC, MoC or (W.Mo)C, Ti, Ta, etc. are used as the metal elements of the main components and the alloy is made to contain O2 of a number of atoms of 1W10% of the number of atoms of Ti+Ta. With this method, the superhard sintered alloy being excellent as cutting tool, wear-resisting material, etc. is obtained
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11771677A JPS5450408A (en) | 1977-09-29 | 1977-09-29 | Superhard alloy and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11771677A JPS5450408A (en) | 1977-09-29 | 1977-09-29 | Superhard alloy and its preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5450408A true JPS5450408A (en) | 1979-04-20 |
Family
ID=14718517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11771677A Pending JPS5450408A (en) | 1977-09-29 | 1977-09-29 | Superhard alloy and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5450408A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56171488U (en) * | 1980-05-21 | 1981-12-18 | ||
| US4820482A (en) * | 1986-05-12 | 1989-04-11 | Santrade Limited | Cemented carbide body with a binder phase gradient and method of making the same |
| US4843039A (en) * | 1986-05-12 | 1989-06-27 | Santrade Limited | Sintered body for chip forming machining |
| USRE35538E (en) * | 1986-05-12 | 1997-06-17 | Santrade Limited | Sintered body for chip forming machine |
-
1977
- 1977-09-29 JP JP11771677A patent/JPS5450408A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56171488U (en) * | 1980-05-21 | 1981-12-18 | ||
| US4820482A (en) * | 1986-05-12 | 1989-04-11 | Santrade Limited | Cemented carbide body with a binder phase gradient and method of making the same |
| US4843039A (en) * | 1986-05-12 | 1989-06-27 | Santrade Limited | Sintered body for chip forming machining |
| USRE35538E (en) * | 1986-05-12 | 1997-06-17 | Santrade Limited | Sintered body for chip forming machine |
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