Research on Laser Cladding Inconel 625 Coating Process for TRT Blades

被引:0
作者
Yao, Jian-Tao [1 ]
Zhang, Guo-Dong [1 ]
Chen, Ze-Lin [1 ]
Qu, Yu-Hu [1 ]
Wang, Li-Shuang [1 ]
Dong, Hui [1 ]
机构
[1] Xian Shiyou Univ, Sch Mat Sci & Engn, Xian 710065, Peoples R China
来源
COATINGS | 2025年 / 15卷 / 02期
关键词
laser cladding; Inconel; 625; structure; corrosion resistance; BEHAVIOR; OPTIMIZATION; RESISTANCE; DEFECTS;
D O I
10.3390/coatings15020171
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this study, Inconel 625 coatings were deposited onto the surface of 2Cr13 stainless steel via laser cladding technology to ensure their corrosion resistance and mechanical properties. The microstructure and characteristics of coatings were adjusted by varying laser power (1200, 1500, and 1800 W), scanning speed (10, 15, and 25 mm/s), and overlap rate (40%, 50%, and 70%). The results showed that the impact resistance of blades was improved by 23% to 30% compared to the substrate, whereas the self-corrosion current density was reduced by 94%-98%, which indicated the outstanding resistance of specimens to damage and corrosion. At the same time, the appropriate processing parameters enabled the surface hardness of the 2Cr13 substrate to be improved. This study provides practical technical guidance for the repair of 2Cr13 blades and a comprehensive enhancement of their corrosion resistance and mechanical properties through parameter optimization.
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页数:19
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