40CrNiMoA钢激光淬火+氮化复合处理  

Laser Quenching + Nitriding Compound Treatment of 40CrNiMoA Steels

作　　者：席守谋[1] 张建国[1] 孙晓燕[1] 张津生[1] 刘富荣[2] 王志刚[1] 

机构地区：[1]西北工业大学国家凝固重点实验室,西安710072 [2]北京航空材料研究院,北京100095

出　　处：《材料工程》2003年第9期44-47,共4页Journal of Materials Engineering

摘　　要：对40CrNiMoA钢分别经激光淬火、气体氮化、氮化-激光淬火复合处理及激光淬火-氮化复合处理的硬化层深度及其表面硬度分布进行了比较分析。结果表明,在激光淬火-氮化复合处理中,激光淬火可使随后氮化处理的表层硬度提高100～200HV,硬化层深度可成倍增加;在氮化-激光淬火复合处理中,激光淬火可使预先氮化处理的硬化层深度有大幅度的提高,而表层硬度变化不大。Laser quenching,nitriding,nitridinglaser quenching compound treatment and laser quenchingnitriding compound treatment on 40CrNiMoA steels was carried out, and its surface hardness was investigatedComparing with the simple nitriding,the combining process of laser quenchingnitriding would increase the surface hardness by 100～200HV and the depth of hardened layer would be doubleHowever, if the combining process of nitridinglaser quenching is employed,the depth of hardness layer would be much deeper than that of simple nitriding,while the surface hardness would not be increased

关 键 词：激光淬火 氮化 硬度 硬化层深度 40CRNIMOA钢 氮化处理 

分 类 号：TG142.41[一般工业技术—材料科学与工程]