摘要
针对加载试验后,MA195马氏体钢制碟簧产生的表面裂纹问题,经一系列测试,提出了相应的改进工艺。分析和验证结果表明:制造过程中发蓝工艺引入的氢脆和应力腐蚀是导致碟簧产生裂纹的主要原因;将发蓝工艺改为润滑剂防护能满足工艺和设计要求。该结论可为该类材料碟簧的制造提供参考。
Aiming to surface cracks on MA195 steel disk springs during loading tests, a modified processing was put forward after a series of tests and analysis. The results show that the cracks on disk spring maily result from the hydrogen embrittlement and stress corrosion in bluing. Lubricant protection which replace the bluing, can satisfy the requirement of technology and design. The results can be a reference for the disk spring, which is made in the material.
出处
《热加工工艺》
CSCD
北大核心
2013年第22期210-211,214,共3页
Hot Working Technology
关键词
MA195钢
碟簧
氢脆
应力腐蚀
MA195 steel
disk spring
hydrogen embrittlement
stress corrosion
