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Effects of V and Cr on Laser Cladded Fe-Based Coatings

School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China
Shenyang Dalu Laser Technology CO., Ltd., Shenyang 110136, China
School of Stomatology, China Medical University, Shenyang 110002, China
Author to whom correspondence should be addressed.
Coatings 2018, 8(3), 107;
Received: 7 February 2018 / Revised: 4 March 2018 / Accepted: 13 March 2018 / Published: 15 March 2018
(This article belongs to the Special Issue Laser Surface Treatment)
PDF [20349 KB, uploaded 3 May 2018]


Fe-based coatings with high V and Cr content were obtained by laser cladding using Fe-based powder with different Cr3C2 and FeV50 content. The results showed that Fe-based coatings were uniform and dense. The constituent phases were mainly composed of α-Fe solid solution with the increase of Cr3C2 and FeV50, γ-Fe and V8C7 phases were achieved. The microstructure of the coatings exhibited a typical dendrite structure. The concentration of C, V and Cr were saturated in dendritic areas, and the other alloying elements were mainly dissolved in the interdendritic areas. The hardness and wear resistance of Fe-based coatings were enhanced with the Cr3C2 and FeV50 addition. The specimen with 15% Cr3C2 and 16% FeV50 had the highest hardness of 66.1 ± 0.6 HRC, which was 1.05 times higher than the sample with 4.5% Cr3C2 and 5% FeV50, and the wear resistance of the former was three times greater than the latter. View Full-Text
Keywords: laser cladding; Fe-based coating; microstructure; hardness; wear resistance laser cladding; Fe-based coating; microstructure; hardness; wear resistance

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Wang, H.; Zhang, S.; Zhang, C.; Wu, C.; Zhang, J.; Abdullah, A.O. Effects of V and Cr on Laser Cladded Fe-Based Coatings. Coatings 2018, 8, 107.

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