Analysis of WC Distribution and Microstructure Evolution in a WC/17-4ph Composite Coating Prepared by High Speed Laser Cladding (HSLC)

被引：0
|
作者：
Cui, Y. H. [1 ]
Chen, W. [1 ]
Cui, L. J. [1 ]
Guo, S. R. [1 ]
Li, X. . L. [1 ]
Chen, Y. Q. [1 ]
Liu, J. L. [1 ]
Zheng, B. [1 ]
Li, W. L. [2 ]
Wang, D. F. [2 ]
Tian, Y. M. [2 ]
机构：
[1] Zhongyuan Univ Technol, Sch Mech & Elect Engn, 41 Zhongyuan Rd M, Zhengzhou 450007, Henan, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Mech Engn, 1037 Luoyu Rd, Wuhan 430074, Hubei, Peoples R China
来源：
LASERS IN ENGINEERING | 2024年 / 58卷 / 1-3期
关键词：
cladding (HSLC); composite coating; metal matrix composite (MMC); organizational evolution; strengthening effect; Fibre laser; 17-4ph stainless steel; WC/17-4ph; high speed laser; WEAR-RESISTANCE; STEEL; TI-6AL-4V;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To prepare a high quality Fe-based ceramic composite coating, 17-4ph+30% WC alloy powder was clad onto a 17-4ph stainless steel substrate by high speed laser cladding (HSLC) and a metal matrix composite (MMC) clad without cracks and pores was achieved. The WC particle distribution, microstructure formation and evolution mechanism of the MMC laser clad were studied in detail. The results show that the phase composition of the MMC laser clad mainly includes gamma-Fe, W2C, WC, Ni3Fe, Cr23C6, etc. The WC particles in the MMC laser clad show a good metallurgical bonding with the 17-4ph substrate, the dilution rate of the clad is low and the higher heat input causes more WC particles to melt and decompose, generating more hard strengthening phases. The grain refinement strengthening, solid solution strengthening and second phase strengthening are more prominent, which provides a scientific basis for optimizing the preparation of high quality Fe-based ceramic composite coatings.
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页码：21 / 41
页数：21
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