WEAR PROPERTIES AND CHARACTERIZATION OF LASER-DEPOSITED NI-BASE COMPOSITES ON 304 STAINLESS STEEL

Zhiyuan Liu, Guanchao Li, Jianing Li, Mengzhen Wang, Huijun Yu and Chuanzhong Chen
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Zhiyuan Liu: School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, China
Guanchao Li: School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, China
Jianing Li: School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, China
Mengzhen Wang: School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, China
Huijun Yu: #x2020;Key Laboratory of High-Efficiency and Clean Mechanical Manufacture (Ministry of Education) and National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China
Chuanzhong Chen: #x2021;Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education) and Shandong Engineering Research Center for Superhard Material, Department of Materials Science and Engineering, Shandong University, Jinan 250061, China

Surface Review and Letters (SRL), 2020, vol. 27, issue 10, 1-6

Abstract: The amorphous phase (AP) and nanocrystalline particle (NP)-reinforced composite coating was fabricated by laser cladding (LC) of the Ni45-WC mixed powders on the 304 stainless steel. An LC technique favored APs as well as NPs to be formed due to their rapid cooling and solidification characteristics, so the wear resistance of the Ni-base coating was improved. Microstructures and wear resistance of the fabricated composite coating were studied extensively. The test results showed that the microhardness and wear resistance of this LC coating were enhanced under the actions of NPs, APs and the ceramics. The study of the laser synthesis of NPs provided a theoretical basis for improving the LC technique.

Keywords: Laser cladding; stainless steel; nanomaterials (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1142/S0218625X19502196

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