Hui Jiang , LiLi , Wenlong Xie , Chengbin Wei , Delong Jia , Junru Li , Yanhui Li
{"title":"NbC颗粒对激光熔覆AlCoCrFeNi2.1共晶高熵合金涂层组织和磨损性能的影响","authors":"Hui Jiang , LiLi , Wenlong Xie , Chengbin Wei , Delong Jia , Junru Li , Yanhui Li","doi":"10.1016/j.surfcoat.2025.131963","DOIUrl":null,"url":null,"abstract":"<div><div>The AlCoCrFeNi<sub>2.1</sub> eutectic high-entropy alloy (EHEA) coating obtained optimal laser cladding parameters by temperature field simulation and experimental comparison, and the AlCoCrFeNi<sub>2.1</sub>-xNbC (x = 0, 2.5, 5.0, 7.5, 10 wt%) composite coatings were successfully prepared using laser cladding. The effect of NbC content on the microstructure, Vickers hardness, and wear resistance of AlCoCrFeNi<sub>2.1</sub>-xNbC composite coatings were systematically investigated. The coatings are composed of NbC, FCC/Ll<sub>2</sub>, and BCC phases. With the addition of NbC particle, the volume fraction of the NbC phase increases, and their morphology gradually transforms from rod-shaped to irregular polyhedral. The hardness value of the AlCoCrFeNi<sub>2.1</sub>-xNbC composite coatings increased from 270 HV0.5 to 365 HV0.5 (hardness value equivalent to H13 steel matrix 2 times). The average friction coefficient and wear volume of AlCoCrFeNi<sub>2.1</sub>-xNbC composite coatings have significantly decreased. The AlCoCrFeNi<sub>2.1</sub>–5.0NbC composite coating exhibited the optimal wear resistance with a friction coefficient and wear volume of 0.59 and 3.96 × 10<sup>6</sup> μm<sup>3</sup>, respectively. While the friction coefficient and wear volume of the H13 are 1.0 and 2.05 × 10<sup>7</sup> μm<sup>3</sup>. This was attributed to the suitable proportion of NbC particles that made the coating form a uniform microstructure with appropriate hard and wear resistant.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"502 ","pages":"Article 131963"},"PeriodicalIF":6.1000,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Influence of NbC particles on microstructure and wear properties of AlCoCrFeNi2.1 eutectic high-entropy alloy coatings prepared by laser cladding\",\"authors\":\"Hui Jiang , LiLi , Wenlong Xie , Chengbin Wei , Delong Jia , Junru Li , Yanhui Li\",\"doi\":\"10.1016/j.surfcoat.2025.131963\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The AlCoCrFeNi<sub>2.1</sub> eutectic high-entropy alloy (EHEA) coating obtained optimal laser cladding parameters by temperature field simulation and experimental comparison, and the AlCoCrFeNi<sub>2.1</sub>-xNbC (x = 0, 2.5, 5.0, 7.5, 10 wt%) composite coatings were successfully prepared using laser cladding. The effect of NbC content on the microstructure, Vickers hardness, and wear resistance of AlCoCrFeNi<sub>2.1</sub>-xNbC composite coatings were systematically investigated. The coatings are composed of NbC, FCC/Ll<sub>2</sub>, and BCC phases. With the addition of NbC particle, the volume fraction of the NbC phase increases, and their morphology gradually transforms from rod-shaped to irregular polyhedral. The hardness value of the AlCoCrFeNi<sub>2.1</sub>-xNbC composite coatings increased from 270 HV0.5 to 365 HV0.5 (hardness value equivalent to H13 steel matrix 2 times). The average friction coefficient and wear volume of AlCoCrFeNi<sub>2.1</sub>-xNbC composite coatings have significantly decreased. The AlCoCrFeNi<sub>2.1</sub>–5.0NbC composite coating exhibited the optimal wear resistance with a friction coefficient and wear volume of 0.59 and 3.96 × 10<sup>6</sup> μm<sup>3</sup>, respectively. While the friction coefficient and wear volume of the H13 are 1.0 and 2.05 × 10<sup>7</sup> μm<sup>3</sup>. This was attributed to the suitable proportion of NbC particles that made the coating form a uniform microstructure with appropriate hard and wear resistant.</div></div>\",\"PeriodicalId\":22009,\"journal\":{\"name\":\"Surface & Coatings Technology\",\"volume\":\"502 \",\"pages\":\"Article 131963\"},\"PeriodicalIF\":6.1000,\"publicationDate\":\"2025-04-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Surface & Coatings Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0257897225002373\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/2/24 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COATINGS & FILMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface & Coatings Technology","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0257897225002373","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/24 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
Influence of NbC particles on microstructure and wear properties of AlCoCrFeNi2.1 eutectic high-entropy alloy coatings prepared by laser cladding
The AlCoCrFeNi2.1 eutectic high-entropy alloy (EHEA) coating obtained optimal laser cladding parameters by temperature field simulation and experimental comparison, and the AlCoCrFeNi2.1-xNbC (x = 0, 2.5, 5.0, 7.5, 10 wt%) composite coatings were successfully prepared using laser cladding. The effect of NbC content on the microstructure, Vickers hardness, and wear resistance of AlCoCrFeNi2.1-xNbC composite coatings were systematically investigated. The coatings are composed of NbC, FCC/Ll2, and BCC phases. With the addition of NbC particle, the volume fraction of the NbC phase increases, and their morphology gradually transforms from rod-shaped to irregular polyhedral. The hardness value of the AlCoCrFeNi2.1-xNbC composite coatings increased from 270 HV0.5 to 365 HV0.5 (hardness value equivalent to H13 steel matrix 2 times). The average friction coefficient and wear volume of AlCoCrFeNi2.1-xNbC composite coatings have significantly decreased. The AlCoCrFeNi2.1–5.0NbC composite coating exhibited the optimal wear resistance with a friction coefficient and wear volume of 0.59 and 3.96 × 106 μm3, respectively. While the friction coefficient and wear volume of the H13 are 1.0 and 2.05 × 107 μm3. This was attributed to the suitable proportion of NbC particles that made the coating form a uniform microstructure with appropriate hard and wear resistant.
期刊介绍：
Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance:
A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting.
B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.
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