Plasma transferred arc cladding of Ni-Cr-B-Si coating on copper substrate

Chao Zhang; Ruidong Wang; Rong Hu; Zhiyu Chen; Yuwen Zhang; Xionggang Lu

Materials Letters: X (Jun 2022)

Plasma transferred arc cladding of Ni-Cr-B-Si coating on copper substrate

Chao Zhang,
Ruidong Wang,
Rong Hu,
Zhiyu Chen,
Yuwen Zhang,
Xionggang Lu

Affiliations

Chao Zhang: State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
Ruidong Wang: State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
Rong Hu: State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
Zhiyu Chen: State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
Yuwen Zhang: Corresponding authors.; State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
Xionggang Lu: Corresponding authors.; State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China

Journal volume & issue: Vol. 14
p. 100137

Abstract

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Aiming to improve the surface properties of copper, a Ni-Cr-B-Si coating was fabricated by plasma transferred arc (PTA) cladding. The coating formed a good metallurgical bonding with the copper substrate, and the dilution rate was about 15.9%. The coating mainly contained γ-(Cu, Fe, Ni), Cr23C6, CrB and Ni3Si phases, which played a role of solid solution strengthening and dispersion strengthening. The hardness of the coating was significantly improved compared to the copper substrate, which was approximately 7.8 times that of the substrate. The wear resistance of the coating was 5.0 times higher than that of the copper substrate, and the wear mechanism was abrasive wear.

Published in Materials Letters: X

ISSN: 2590-1508 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-letters-x

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