Microstructure and Properties of the Pure Copper Coating Prepared by Blue Laser Cladding

被引：0

作者：

Ning, Chenhong ^{[1
,2
]}

Gao, Shuohong ^{[2
]}

Zheng, Jiangpeng ^{[3
]}

Wang, Xiao ^{[3
]}

Yang, Junhong ^{[3
]}

Su, Yunhai ^{[1
]}

Liu, Min ^{[2
]}

Yan, Xingchen ^{[2
]}

机构：

[1] School of Material Science and Engineering, Shenyang University of Technology, Shenyang

[2] Institute of New Materials, Guangdong Academy of Sciences, National Engineering Laboratory of Modern Materials Surface Engineering Technology, Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Guangzhou

[3] Guangdong Key and Core Technology Institute, Guangzhou

来源：

Cailiao Daobao/Materials Reports | 2024年 / 38卷 / 17期

关键词：

blue laser; laser cladding; mechanical property; microstructure; pure copper;

D O I：

10.11896/cldb.23040078

中图分类号：

学科分类号：

摘要：

The low infrared laser absorption of pure copper material limits its traditional application in surface protection through laser cladding. In this study,blue laser cladding technology was employed to prepare pure copper coatings,and process parameters were obtained through theoretical calculations and experimental verification. Subsequently,the microstructure,microhardness,and friction and wear behavior of the pure copper cladding layer were analyzed. In conjunction with XRD and EDS results,the elemental distribution and phase compositions of the cladding layer during blue laser cladding were also studied. Results indicated that the blue laser cladding technology provides a large process window for producing well-formed cladding layers of pure copper. The cladding interface showed a clear presence of intermetallic compounds NiCu4 and FeCu4. The microhardness of the pure copper cladding layer was found to be lower than that of the substrate material,with a significant hardness transition zone at the bonding interface,indicating a large dilution zone between the coating and substrate. Under dry friction and wear test at room temperature,the cladding layer exhibited good wear resistance,with a mixed mechanism of adhesive and abrasive wear and significant oxidation wear. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.

引用

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