Lili Cao , Yu Qian , Yibo Shao , Yanjie Ren , Yongfeng Li , Hongzhi Cui , Yunpeng Li , Yunze Wu
{"title":"CeO2和WC协同增强激光熔覆Ni60涂层的组织和性能","authors":"Lili Cao , Yu Qian , Yibo Shao , Yanjie Ren , Yongfeng Li , Hongzhi Cui , Yunpeng Li , Yunze Wu","doi":"10.1016/j.jmrt.2025.06.023","DOIUrl":null,"url":null,"abstract":"<div><div>This study investigates the effects of different CeO<sub>2</sub> contents (0.5 wt.%, 1.0 wt.%, 1.5 wt.% and 2.0 wt.%) on the microstructure and properties of 50 wt.%WC-Ni60 coatings to enhance performance, extend the service life of laser cladding coatings on 45 steel. The synergistic mechanisms by which CeO<sub>2</sub> and WC improve the microstructure and properties of the coatings are systematically explored. Microstructural characterization, phase analysis, microhardness testing, wear resistance evaluation, and corrosion resistance assessment were conducted using scanning electron microscopy (SEM), X-ray diffraction (XRD), and electrochemical methods. The results demonstrate that CeO<sub>2</sub> addition significantly refines the grain structure of WC-Ni60 coatings, leading to notable improvements in microhardness, wear resistance, and corrosion resistance. The optimal performance is achieved at a CeO<sub>2</sub> content of 1.0 wt.%: compared with 50 wt.% WC-Ni60 coating, the microhardness increases by 9.3 %, the wear rate decreases by 88.4 %, and the corrosion resistance is significantly enhanced. These improvements are attributed to CeO<sub>2</sub>-induced grain refinement, homogeneous distribution of hard phases.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 646-658"},"PeriodicalIF":6.6000,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Microstructure and properties of CeO2 and WC synergistically enhanced laser cladding Ni60 coatings\",\"authors\":\"Lili Cao , Yu Qian , Yibo Shao , Yanjie Ren , Yongfeng Li , Hongzhi Cui , Yunpeng Li , Yunze Wu\",\"doi\":\"10.1016/j.jmrt.2025.06.023\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study investigates the effects of different CeO<sub>2</sub> contents (0.5 wt.%, 1.0 wt.%, 1.5 wt.% and 2.0 wt.%) on the microstructure and properties of 50 wt.%WC-Ni60 coatings to enhance performance, extend the service life of laser cladding coatings on 45 steel. The synergistic mechanisms by which CeO<sub>2</sub> and WC improve the microstructure and properties of the coatings are systematically explored. Microstructural characterization, phase analysis, microhardness testing, wear resistance evaluation, and corrosion resistance assessment were conducted using scanning electron microscopy (SEM), X-ray diffraction (XRD), and electrochemical methods. The results demonstrate that CeO<sub>2</sub> addition significantly refines the grain structure of WC-Ni60 coatings, leading to notable improvements in microhardness, wear resistance, and corrosion resistance. The optimal performance is achieved at a CeO<sub>2</sub> content of 1.0 wt.%: compared with 50 wt.% WC-Ni60 coating, the microhardness increases by 9.3 %, the wear rate decreases by 88.4 %, and the corrosion resistance is significantly enhanced. These improvements are attributed to CeO<sub>2</sub>-induced grain refinement, homogeneous distribution of hard phases.</div></div>\",\"PeriodicalId\":54332,\"journal\":{\"name\":\"Journal of Materials Research and Technology-Jmr&t\",\"volume\":\"37 \",\"pages\":\"Pages 646-658\"},\"PeriodicalIF\":6.6000,\"publicationDate\":\"2025-06-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Research and Technology-Jmr&t\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2238785425014450\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Research and Technology-Jmr&t","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2238785425014450","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Microstructure and properties of CeO2 and WC synergistically enhanced laser cladding Ni60 coatings
This study investigates the effects of different CeO2 contents (0.5 wt.%, 1.0 wt.%, 1.5 wt.% and 2.0 wt.%) on the microstructure and properties of 50 wt.%WC-Ni60 coatings to enhance performance, extend the service life of laser cladding coatings on 45 steel. The synergistic mechanisms by which CeO2 and WC improve the microstructure and properties of the coatings are systematically explored. Microstructural characterization, phase analysis, microhardness testing, wear resistance evaluation, and corrosion resistance assessment were conducted using scanning electron microscopy (SEM), X-ray diffraction (XRD), and electrochemical methods. The results demonstrate that CeO2 addition significantly refines the grain structure of WC-Ni60 coatings, leading to notable improvements in microhardness, wear resistance, and corrosion resistance. The optimal performance is achieved at a CeO2 content of 1.0 wt.%: compared with 50 wt.% WC-Ni60 coating, the microhardness increases by 9.3 %, the wear rate decreases by 88.4 %, and the corrosion resistance is significantly enhanced. These improvements are attributed to CeO2-induced grain refinement, homogeneous distribution of hard phases.
期刊介绍:
The Journal of Materials Research and Technology is a publication of ABM - Brazilian Metallurgical, Materials and Mining Association - and publishes four issues per year also with a free version online (www.jmrt.com.br). The journal provides an international medium for the publication of theoretical and experimental studies related to Metallurgy, Materials and Minerals research and technology. Appropriate submissions to the Journal of Materials Research and Technology should include scientific and/or engineering factors which affect processes and products in the Metallurgy, Materials and Mining areas.