摘要
本文介绍了气门的工作条件、正常失效及21-4N钢排气门强化热处理与层状析出的关系,分析了层状组织对其性能影响和21-4N钢排气门过载“断头”失效的原因。
The valve work condition and normal failure are studied in this paper. The heat treatment of 21-4N steel exhaust valve is related to the samdwich separated out. The samdwich affects the valve capability 21-4N steel exhaust valve fatigue fracture is caused by thermal overstress.
出处
《机电工程技术》
2006年第12期74-76,共3页
Mechanical & Electrical Engineering Technology
关键词
气门
失效
层状析出
晶界
疲劳失效
valve
failure
samdwich
grain boundary
fatigue failure
