METALLOGRAPHIC INVESTIGATIONS OF THE WEAR SURFACES OF GRAY IRON IN SLIDING FRICTION.

被引:0
|
作者
Fetisova, M.M. [1 ]
Kuzina, M.G. [1 ]
Pogrebnyak, G.D. [1 ]
机构
[1] Lvov Polytechnic Inst, Lvov, USSR, Lvov Polytechnic Inst, Lvov, USSR
关键词
IRON AND STEEL METALLOGRAPHY - Microstructures;
D O I
暂无
中图分类号
学科分类号
摘要
Cast structures with finely dispersed lamellar pearlite and vermicular graphite with interdendritic lamellar graphite have the best wear resistance. Hardening and tempering do not improve wear resistance of piston rings since the structure formed is unstable under service conditions (after hardening) or it has reduced shear deformation resistance (after hardening and tempering). Oxidation, abrasive wear and seizing develop in relation to the original structure. The best wear resistance is with the oxidation mechanism of rubbing.
引用
收藏
页码:746 / 749
相关论文
共 50 条