Email this article Microstructure and Properties of NiFeCrBSi/WC Composite Coatings Fabricated by Vacuum Cladding
- Authors: Han C.F.1, Zhang X.D.2, Sun Y.F.1
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Affiliations:
- School of Mechanical and Electrical Engineering, Xinlian College of Henan Normal University
- China Railway Engineering Equipment Group Co., Ltd., Economy and Technology Development District
- Issue: Vol 120, No 9 (2019)
- Pages: 898-906
- Section: Strength and Plasticity
- URL: https://journals.rcsi.science/0031-918X/article/view/168714
- DOI: https://doi.org/10.1134/S0031918X19090047
- ID: 168714
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Abstract
Abstract—In this study, WC-reinforced Ni-based alloy composite coatings were fabricated on the surface of ASTM 1045 steel by vacuum cladding. The microstructure, hardness, and wear resistance of coatings with different tungsten carbide (WC) content and dissolution mechanisms for WC at different cladding temperatures were studied. The bonding phase was mainly composed of austenite (Ni2.9Cr0.7Fe0.36, FeNi), and the reinforced phases consisted of WC, carbides (Cr7C3, (Cr,Fe)7C3), borides, and silicides. The dissolution of WC became severe with increasing cladding temperature, and the reaction products mainly included rounded block-shaped WC particles, lath-shaped rich tungsten carbide, and fine granular carbides. The Ni-based coating with 30% WC sintering at 1225°C performed better wear resistance, six times greater than that of matrix steel.
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About the authors
C. F. Han
School of Mechanical and Electrical Engineering, Xinlian College of Henan Normal University
Email: yufusunzzu@163.com
China, Zhengzhou, 451400
X. D. Zhang
China Railway Engineering Equipment Group Co., Ltd., Economy and Technology Development District
Email: yufusunzzu@163.com
China, Zhengzhou, 450000
Y. F. Sun
School of Mechanical and Electrical Engineering, Xinlian College of Henan Normal University
Author for correspondence.
Email: yufusunzzu@163.com
China, Zhengzhou, 451400
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