Liwei Du, Xuedao Shu, Haijie Xu, Chang Shu, Khamis Essa
{"title":"316不锈钢激光熔覆法制备FeCoNiCrAlx高熵合金涂层的摩擦学、电化学和力学性能","authors":"Liwei Du, Xuedao Shu, Haijie Xu, Chang Shu, Khamis Essa","doi":"10.1007/s10853-025-10871-0","DOIUrl":null,"url":null,"abstract":"<div><p>FeCoNiCrAl<sub>x</sub> high-entropy alloy (HEA) coatings were synthesized on 316 stainless steel (SS) using laser cladding. The influence of Al content on the phase composition, microstructure, tribological behavior, electrochemical performance, and mechanical properties of the coatings was comprehensively examined. The findings reveal that the phase structure of the HEA coatings transitions from a single FCC phase (<i>x</i> = 0, 0.3) to a dual FCC + BCC phase (<i>x</i> = 0.5, 0.7) and ultimately to a single BCC phase (<i>x</i> = 1.0). With increasing Al content, the microstructure evolves from columnar to equiaxed crystals, accompanied by progressive grain refinement. This grain refinement enhances the hardness of the coatings, which correlates positively with improved tribological properties. At <i>x</i> = 1.0, the coating demonstrates the lowest wear rate. Conversely, the corrosion resistance decreases as Al content increases, with the minimum corrosion current density observed at <i>x</i> = 0 (22.491 μA·cm⁻<sup>2</sup>). Furthermore, the tensile properties improve initially and then deteriorate with increasing Al content, achieving optimal mechanical performance at <i>x</i> = 0.5. In conclusion, the HEA coatings significantly enhance the tribological, electrochemical, and mechanical properties of 316 SS.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 16","pages":"7066 - 7088"},"PeriodicalIF":3.5000,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Tribological electrochemical and mechanical properties of FeCoNiCrAlx high-entropy alloy coatings prepared by laser cladding on 316 stainless steel\",\"authors\":\"Liwei Du, Xuedao Shu, Haijie Xu, Chang Shu, Khamis Essa\",\"doi\":\"10.1007/s10853-025-10871-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>FeCoNiCrAl<sub>x</sub> high-entropy alloy (HEA) coatings were synthesized on 316 stainless steel (SS) using laser cladding. The influence of Al content on the phase composition, microstructure, tribological behavior, electrochemical performance, and mechanical properties of the coatings was comprehensively examined. The findings reveal that the phase structure of the HEA coatings transitions from a single FCC phase (<i>x</i> = 0, 0.3) to a dual FCC + BCC phase (<i>x</i> = 0.5, 0.7) and ultimately to a single BCC phase (<i>x</i> = 1.0). With increasing Al content, the microstructure evolves from columnar to equiaxed crystals, accompanied by progressive grain refinement. This grain refinement enhances the hardness of the coatings, which correlates positively with improved tribological properties. At <i>x</i> = 1.0, the coating demonstrates the lowest wear rate. Conversely, the corrosion resistance decreases as Al content increases, with the minimum corrosion current density observed at <i>x</i> = 0 (22.491 μA·cm⁻<sup>2</sup>). Furthermore, the tensile properties improve initially and then deteriorate with increasing Al content, achieving optimal mechanical performance at <i>x</i> = 0.5. In conclusion, the HEA coatings significantly enhance the tribological, electrochemical, and mechanical properties of 316 SS.</p></div>\",\"PeriodicalId\":645,\"journal\":{\"name\":\"Journal of Materials Science\",\"volume\":\"60 16\",\"pages\":\"7066 - 7088\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2025-04-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Science\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10853-025-10871-0\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10853-025-10871-0","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Tribological electrochemical and mechanical properties of FeCoNiCrAlx high-entropy alloy coatings prepared by laser cladding on 316 stainless steel
FeCoNiCrAlx high-entropy alloy (HEA) coatings were synthesized on 316 stainless steel (SS) using laser cladding. The influence of Al content on the phase composition, microstructure, tribological behavior, electrochemical performance, and mechanical properties of the coatings was comprehensively examined. The findings reveal that the phase structure of the HEA coatings transitions from a single FCC phase (x = 0, 0.3) to a dual FCC + BCC phase (x = 0.5, 0.7) and ultimately to a single BCC phase (x = 1.0). With increasing Al content, the microstructure evolves from columnar to equiaxed crystals, accompanied by progressive grain refinement. This grain refinement enhances the hardness of the coatings, which correlates positively with improved tribological properties. At x = 1.0, the coating demonstrates the lowest wear rate. Conversely, the corrosion resistance decreases as Al content increases, with the minimum corrosion current density observed at x = 0 (22.491 μA·cm⁻2). Furthermore, the tensile properties improve initially and then deteriorate with increasing Al content, achieving optimal mechanical performance at x = 0.5. In conclusion, the HEA coatings significantly enhance the tribological, electrochemical, and mechanical properties of 316 SS.
期刊介绍:
The Journal of Materials Science publishes reviews, full-length papers, and short Communications recording original research results on, or techniques for studying the relationship between structure, properties, and uses of materials. The subjects are seen from international and interdisciplinary perspectives covering areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, nanostructured materials, nanocomposites, and biological and biomedical materials. The Journal of Materials Science is now firmly established as the leading source of primary communication for scientists investigating the structure and properties of all engineering materials.