Effect of metallurgical behavior on microstructure and properties of FeCrMoMn coatings prepared by high-speed laser cladding

被引：90

作者：

Yang, Jiaoxi ^{[1
]}

Bai, Bing ^{[1
]}

Ke, Hua ^{[1
]}

Cui, Zhe ^{[1
]}

Liu, Zhe ^{[1
]}

Zhou, Zheng ^{[2
]}

Xu, Hongchao ^{[2
]}

Xiao, Junheng ^{[2
]}

Liu, Qi ^{[3
]}

Li, Huaixue ^{[3
]}

机构：

[1] Beijing Univ Technol, Fac Mat & Mfg, Inst Laser Engn, Beijing 100124, Peoples R China

[2] China Acad Railway Sci, State Key Lab Track Technol High Speed Railway, Beijing 100081, Peoples R China

[3] AVIC Mfg Technol Inst, Beijing 100024, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2021年 / 144卷

基金：

中国国家自然科学基金;

关键词：

High-speed laser cladding; FeCrMoMn coatings; Solute trapping; Microstructure; Corrosion resistance;

D O I：

10.1016/j.optlastec.2021.107431

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this research, FeCrMoMn coatings with excellent corrosion resistance and metallurgical quality were deposited on the 45# steel substrate by conventional and high-speed laser cladding at the scanning speed of 0.4 m/min, 40 m/min and 70 m/min, respectively. Their microstructure, phase composition, hardness and corrosion resistance were characterized and compared. The results show that compared with the conventional cladding, high-speed laser cladding leads to a decrease in grain size, heat affected zone, and the dilution rate of the coatings due to solute trapping of coatings. Metallurgical bonding is formed between the substrate and the coatings, and the hardness and electrochemical corrosion resistance of the coatings are also significantly improved.

引用

页数：10

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