1Cr11Ni2W2MoV不锈钢渗氮表面磨削后点状剥落问题研究

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摘要：1Cr11Ni2W2MoV不锈钢的零件渗氮处理后，零件渗氮表面磨削后发现渗氮面存在点状剥落现象。通过研究氮化物剥落形貌及分布、渗氮层金相组织及硬度，探讨了渗氮层磨削后出现点状剥落的原因，并提出了解决该问题的工艺解决措施。

关键词：渗氮；点状剥落；裂纹

Research on the problem of point-like peeling on the nitride surface of 1Cr11Ni2W2MoV material after grinding

JIANG Zhenyan， XIE Shan， ZHANG Shijia， HUANG Wendong， ZHANG Kejiang

Chengdu Hangli Aviation Technology Co.， Ltd.， Chengdu 611900， Sichuan， China

Abstract： After parts of 1Cr11Ni2W2MoV stainless steel were nitrided， point-like peeling was found on the nitrided surface after grinding. This paper studied the morphology and distribution of point-like peeling， the microstructure and hardness of the nitrided layer， and explored the reasons for the point-like peeling after grinding the nitrided layer. It also proposed a solution to the problem.

Keywords： nitride; spotting debris; crack

1 序言

渗氮是将N原子在高温下渗入零件表面，以获得高氮表层的化学热处理工艺。（剩余4238字）