PURPOSE: To obtain a wear-resistant sintered Fe alloy with improved wear resistance, by mixing Fe-Cr-B alloy powder having a specified composition with graphite powder and Fe-P alloy powder and by molding and sintering the mixture.
CONSTITUTION: A mixture consisting of, by weight, 16W50% Fe-Cr-B alloy powder, 1.0W3.5% graphite powder and the balance Fe-P alloy powder combined optionally with Fe or low-alloy Fe powder is molded and sintered to obtain a wear-resistant sintered alloy. The Fe-Cr-B alloy powder consists of 10W35% Cr, 1.0W2.5% B and the balance Fe with impurities. The Fe-P alloy powder is used so that P is incorporated by 0.2W1.0% of the amount of all the powders. Since the sintered alloy does not contain expensive alloying elements such as Mo and W, it can be manufactured inexpensively. The sintered alloy is suitable for use as a member of a rocker arm for an internal combustion engine.
OOKAWAHISA TAKAAKI
SOTOZONO YASUJI
| JPS57108243A | 1982-07-06 | |||
| JPS5822358A | 1983-02-09 |