{"title":"Microstructure and Tribological Properties of In situ-Synthesized WC-Reinforced Ni60 Coatings Prepared by Laser Cladding with Different Scanning Rates","authors":"Zhibin Yan, Weizhou Li, Shengyuan Lei, Ruixia Yang, Dechang Zeng","doi":"10.1007/s11666-024-01781-9","DOIUrl":null,"url":null,"abstract":"<div><p>To reduce the decomposition of WC in the composite coatings so as to improve the wear resistance, <i>in situ</i>-synthesized WC-reinforced Ni60 coatings were prepared by laser cladding with different laser scanning rates. The results showed that the composite coating was dense and crack-free and mainly composed of Fe<sub>0.64</sub>Ni<sub>0.36</sub>, WC and Cr<sub>2</sub>N phases. More importantly, the <i>in situ</i>-synthesized WC was uniformly distributed in the matrix phase and the composite coating showed the lowest wear rate of 2.82 × 10<sup>−6</sup> mm<sup>3</sup> N<sup>−1</sup> m<sup>−1</sup> when the laser scanning rate was 200 mm min<sup>−1</sup>. The improvement in wear resistance of the coating was ascribed to the formation of WC with high microhardness around 2100 HV<sub>0.1</sub> and good bonding with the matrix phase.</p></div>","PeriodicalId":679,"journal":{"name":"Journal of Thermal Spray Technology","volume":"33 5","pages":"1404 - 1416"},"PeriodicalIF":3.2000,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Thermal Spray Technology","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11666-024-01781-9","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
引用次数: 0
Abstract
To reduce the decomposition of WC in the composite coatings so as to improve the wear resistance, in situ-synthesized WC-reinforced Ni60 coatings were prepared by laser cladding with different laser scanning rates. The results showed that the composite coating was dense and crack-free and mainly composed of Fe0.64Ni0.36, WC and Cr2N phases. More importantly, the in situ-synthesized WC was uniformly distributed in the matrix phase and the composite coating showed the lowest wear rate of 2.82 × 10−6 mm3 N−1 m−1 when the laser scanning rate was 200 mm min−1. The improvement in wear resistance of the coating was ascribed to the formation of WC with high microhardness around 2100 HV0.1 and good bonding with the matrix phase.
期刊介绍：
From the scientific to the practical, stay on top of advances in this fast-growing coating technology with ASM International''s Journal of Thermal Spray Technology. Critically reviewed scientific papers and engineering articles combine the best of new research with the latest applications and problem solving.
A service of the ASM Thermal Spray Society (TSS), the Journal of Thermal Spray Technology covers all fundamental and practical aspects of thermal spray science, including processes, feedstock manufacture, and testing and characterization.
The journal contains worldwide coverage of the latest research, products, equipment and process developments, and includes technical note case studies from real-time applications and in-depth topical reviews.
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