激光与光电子学进展, 2018, 55 (7): 071404, 网络出版: 2018-07-20
30CrMnSiNi2A钢激光熔覆1Cr15Ni4Mo3粉末工艺 
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Process of Laser Cladding of 1Cr15Ni4Mo3 Powder on 30CrMnSiNi2A Steels
激光技术 激光熔覆 30CrMnSiNi2A超高强度钢 1Cr15Ni4Mo3粉末 laser technique laser cladding 30CrMnSiNi2A ultra-high strength steel 1Cr15Ni4Mo3 powder
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1300 MPa，延伸率为8.1%，冲击韧性为53.8 J·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。
Abstract
The 1Cr15Ni4Mo3 alloy powder is cladded on the surface of 30CrMnSiNi2A 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 J·cm-2. The tensile strength and extension rate reach to 90% of those of 30CrMnSiNi2A ultra-high strength base steel, while the impact toughness is doubled if compared with that of base material.
周可欣, 秦仁耀, 曹强, 张志强, 张学军, 孙涛, 淮军峰. 30CrMnSiNi2A钢激光熔覆1Cr15Ni4Mo3粉末工艺[J]. 激光与光电子学进展, 2018, 55(7): 071404. Zhou Kexin, Qing Renyao, Cao Qiang, Zhang Zhiqiang, Zhang Xuejun, Sun Tao, Huai Junfeng. Process of Laser Cladding of 1Cr15Ni4Mo3 Powder on 30CrMnSiNi2A Steels[J]. Laser & Optoelectronics Progress, 2018, 55(7): 071404.
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