Nb reinforced Fe-Mn-Si shape memory alloy composite coating fabricated by laser cladding on 304 stainless steel surface

被引：6
作者：
Liu, Xiaochen [1 ]
Xu, Peng [1 ,2 ]
Yao, Like [1 ]
Li, Xiang [1 ]
Pang, Chi [1 ]
Yang, Long [2 ]
Liang, Yi [3 ]
机构：
[1] Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China
[2] Guizhou Huake Aluminium Co Ltd, Guiyang 550014, Peoples R China
[3] Guizhou Normal Univ, Sch Foreign Languages, Guiyang 550001, Peoples R China
来源：
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2022年 / 36卷 / 10期
关键词：
Fe-based shape memory alloy; Microhardness; Corrosion resistance; Shape recovery rate; RESIDUAL-STRESS; MICROSTRUCTURE; RESISTANCE;
D O I：
10.1007/s12206-022-0915-y
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Laser cladding technology was adapted to fabricate Fe-based shape memory alloy/Nb composite coatings with 5 wt. % Nb doping amounts on 304 stainless steel to promote the microhardness and wear resistance. The SEM, XRD, optical profilometer and electrochemical workstation were used to characterize micromorphology, phase and microstructure. Meanwhile, wear and anti-resistance ability were detected. The results showed that Nb, NbC, epsilon-martensite, alpha'-martensite and gamma-austenite were found in SMA/Nb coating. The microhardness was enhanced because of the solid solution strengthening and second phase strengthening. Also, the shape recovery rate and anti-corrosion property of the SMA/Nb coating are improved as well.
引用
收藏
页码：5027 / 5033
页数：7
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