陶立民,孙文娟,陈继超,杨浩鹏,曹韵牧,吴晓春

• 1:上海汇众汽车制造有限公司
• 2:上海大学材料科学与工程学院

摘要(Abstract)：

对Cr12MoV钢在510～520℃、NH3流量为60 mL/min时不同时间、NH3/CO2不同气氛比值、不同等离子体共渗炉压的氮碳共渗工艺进行了研究。通过金相、XRD、SEM、EDS、摩擦磨损实验,探究了氮碳共渗优化工艺及稀土加入对Cr12MoV离子氮碳共渗的影响。结果表明:对于冷作模具钢Cr12MoV,时间为10 h、NH3/CO2为10∶1、炉压为500～700 Pa时,实验效果优化。另外,随着稀土镧的加入,渗层增厚且白亮层更致密,硬度梯度更平缓,氮碳共渗效果更佳。

关键词(KeyWords)： Cr12MoV钢;稀土;等离子体氮碳共渗

Abstract:

Keywords:

基金项目(Foundation): 上海市汇众汽车有限公司关于大模块表面维护保养技术研究项目

作者(Author): 陶立民,孙文娟,陈继超,杨浩鹏,曹韵牧,吴晓春

DOI: 10.13289/j.issn.1009-6264.2013.05.030

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