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表面改性技术对 38CrMoAl 钢组织与性能的影响
Effect of Surface Modification Technology on Microstructure and Properties of 38CrMoAl Steel
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- DOI:
- 作者:
- 朱繁康，杨建志，张伟文，冼酷元
ZHU Fankang, YANG Jianzhi, ZHANG Weiwen, XIAN Kuyuan
- 作者单位:
- 华南理工大学 广州华工光机电科技有限公司，广东 广州 510640
Guangzhou Huagong Opto-mechatronics Technology Co., Ltd., South China University of Technology, Guangzhou 510640, China
- 关键词:
- 38CrMoAl 钢；表面改性；碳氮共渗；氮碳共渗；脉冲真空渗氮；耐磨性；耐腐蚀性
Guangzhou Huagong Opto-mechatronics Technology Co., Ltd., South China University of Technology, Guangzhou 510640, China
- 摘要:
- 对 38CrMoAl 钢进行碳氮共渗、氮碳共渗和脉冲真空渗氮处理，研究了表面改性后钢的显微组织、表面相
结构、硬度、耐磨性和耐腐蚀性能。结果表明，碳氮共渗试样表面组织为回火马氏体；氮碳共渗试样表面组织为 Fe24N10 化
合物；脉冲真空渗氮试样表面组织为 Fe2-3N 化合物。 脉冲真空渗氮试样的表面硬度最高（1 026 HV），磨损量最少；氮碳
共渗试样的耐腐蚀性能最好，其锈蚀等级为 4 级。
The microstructure, surface phase structure, hardness, wear resistance and corrosion resistance of 38CrMoAl steel were studied by carbonitriding, nitriding and pulsed vacuum nitriding. The results show that the surface microstructure of carbonitriding samples is tempered martensite. The surface structure of nitriding samples is Fe24N10 compound. The surface structure of pulse vacuum nitriding sample is Fe2-3N compound. The surface hardness of pulsed vacuum nitriding sample is the highest, and the hardness is 1 026 HV, and the wear of pulsed vacuum nitriding sample is the least. Nitrocarburizing sample has the best corrosion resistance, and its corrosion grade is 4.