30CrMnSiNi2A钢激光熔覆1Cr15Ni4Mo3粉末工艺  

Process of Laser Cladding of 1Cr15Ni4Mo3 Powder on 30CrMnSiNi2A Steels

作　　者：周可欣 秦仁耀 曹强 张志强 张学军 孙涛 淮军峰 Zhou Kexin;Qing Renyao;Cao Qiang;Zhang Zhiqiang;Zhang Xuejun;Sun Tao;Huai Junfeng(State-owned Machinery Factory of Wuhu,Wuhu,Anhui 241007,China;AECC Beijing Institute of Aeronautical Materials,Beijing,100095,China)

机构地区：[1]国营芜湖机械厂,安徽芜湖241007 [2]中国航发北京航空材料研究院,北京100095

出　　处：《激光与光电子学进展》2018年第7期324-329,共6页Laser & Optoelectronics Progress

摘　　要：通过激光熔覆技术,在30CrMnSiNi2A超高强度钢表面熔覆了1Cr15Ni4Mo3粉末,研究了熔覆层的显微组织和力学性能。结果表明,熔覆层组织主要为马氏体和奥氏体的双向组织;熔覆接头经过200℃低温回火处理后,拉伸强度大于1300MPa,延伸率为8.1%,冲击韧性为53.8J·cm-2,恢复到30CrMnSiNi2A超高强度钢母材的强度与延伸率的近90%,且冲击韧性达到母材的两倍。The 1Cr15Ni4Mo3 alloy powder is cladded on the surface of 30 CrMnSiNi2 A ultra-high strength steel by the laser cladding technique.The microstructure and mechanical properties of the cladding layers are investigated.The results show that,the microstructure is mainly the martensite and austenite double-phase structure.For the cladding joints,after the low-temperature tempering at 200 ℃,the tensile strength is larger than 1300 MPa,the extension rate is 8.1%,and the impact toughness is 53.8 Jcm^-2.The tensile strength and extension rate reach to90% of those of 30CrMnSiNi2 Aultra-high strength base steel,while the impact toughness is doubled if compared with that of base material.

关 键 词：激光技术 激光熔覆 30CrMnSiNi2A超高强度钢 1Cr15Ni4Mo3粉末 

分 类 号：O436[机械工程—光学工程]