JPS57145967A - Sintered fe alloy with superior heat and wear resistance for valve seat of internal combustion engine - Google Patents
Sintered fe alloy with superior heat and wear resistance for valve seat of internal combustion engineInfo
- Publication number
- JPS57145967A JPS57145967A JP1464282A JP1464282A JPS57145967A JP S57145967 A JPS57145967 A JP S57145967A JP 1464282 A JP1464282 A JP 1464282A JP 1464282 A JP1464282 A JP 1464282A JP S57145967 A JPS57145967 A JP S57145967A
- Authority
- JP
- Japan
- Prior art keywords
- matrix
- alloy
- sintered
- combustion engine
- internal combustion
- 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.)
- Granted
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To obtain a sintered Fe alloy with superior heat and wear resistances for each valve seat of an internal combustion engine using lead-free gasoline by specifying the composition and structure of a steel contg. C, Cu, S, Cr, Mo and V.
CONSTITUTION: This alloy has a composition consisting of, by wt., 0.4W1.5% C, 0.5W9.5% Cu, 0.3W4.0% S, one or more among 0.5W5.0% Cr, 0.5W5.0% Mo and 0.5W3.0% V, and the balance Fe with inevitable impurities and a structure contg. sulfide and carbide phases with high adhesion to the matrix dispersed uniformly in the grain boundaries of the matrix. S combines with Fe, disperses in the grain boundaries of the matrix, forms the sulfide phase with high adhesion to the matrix, and provides superior self-lubricity and machinability to the alloy. Cr, Mo or V is partially solubilized in the matrix to enhance the oxidation resistance, and most of the remainder combines with C, forms a carbide phase dispersing uniformly in the matrix, and enhances the heat and wear resistnces furthermore.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1464282A JPS57145967A (en) | 1982-02-01 | 1982-02-01 | Sintered fe alloy with superior heat and wear resistance for valve seat of internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1464282A JPS57145967A (en) | 1982-02-01 | 1982-02-01 | Sintered fe alloy with superior heat and wear resistance for valve seat of internal combustion engine |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8824576A Division JPS5314108A (en) | 1976-07-26 | 1976-07-26 | Sintered alloy for valve seat |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57145967A true JPS57145967A (en) | 1982-09-09 |
JPS6136069B2 JPS6136069B2 (en) | 1986-08-16 |
Family
ID=11866848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1464282A Granted JPS57145967A (en) | 1982-02-01 | 1982-02-01 | Sintered fe alloy with superior heat and wear resistance for valve seat of internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57145967A (en) |
-
1982
- 1982-02-01 JP JP1464282A patent/JPS57145967A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6136069B2 (en) | 1986-08-16 |
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