Kenan Yang , Haixin Li , Min Wei , Zhanyong Song , Xuefeng Li , Chuanyong Yu
{"title":"亚音速火焰喷涂 Ni20Cr-MoS2 复合涂层的微观结构与性能","authors":"Kenan Yang , Haixin Li , Min Wei , Zhanyong Song , Xuefeng Li , Chuanyong Yu","doi":"10.1016/j.surfcoat.2024.131083","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, a Ni20Cr–MoS<sub>2</sub> composite coating was fabricated using subsonic flame-spraying technology, and the effects of adding MoS<sub>2</sub> on the microstructure, mechanical properties, and tribological properties of the coating were studied. The microstructure analysis of the coatings revealed that the Ni20Cr and Ni20Cr-MoS<sub>2</sub> coatings prepared by subsonic flame spraying had fewer microscopic defects and significant particle flattening. After the addition of MoS<sub>2</sub>, the porosity of the coating decreased, whereas its microhardness increased. The cohesive strength of the coating was measured using the scratch method, and it was found to be enhanced after the addition of MoS<sub>2</sub>. Moreover, in the dry friction state, compared with the Ni20Cr coating, the Ni20Cr–MoS<sub>2</sub> coating performs better. At a load of 20 N, the friction and wear performances of the Ni20Cr–MoS<sub>2</sub> coating were the best, and the friction coefficient decreased by 11.63 %. Based on this, the relationships between the cohesive strength and tribological properties and between the wear mechanism and scratch mechanism of the coating are discussed.</p></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"489 ","pages":"Article 131083"},"PeriodicalIF":5.3000,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Microstructure and properties of Ni20Cr–MoS2 composite coating by subsonic flame spraying\",\"authors\":\"Kenan Yang , Haixin Li , Min Wei , Zhanyong Song , Xuefeng Li , Chuanyong Yu\",\"doi\":\"10.1016/j.surfcoat.2024.131083\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this study, a Ni20Cr–MoS<sub>2</sub> composite coating was fabricated using subsonic flame-spraying technology, and the effects of adding MoS<sub>2</sub> on the microstructure, mechanical properties, and tribological properties of the coating were studied. The microstructure analysis of the coatings revealed that the Ni20Cr and Ni20Cr-MoS<sub>2</sub> coatings prepared by subsonic flame spraying had fewer microscopic defects and significant particle flattening. After the addition of MoS<sub>2</sub>, the porosity of the coating decreased, whereas its microhardness increased. The cohesive strength of the coating was measured using the scratch method, and it was found to be enhanced after the addition of MoS<sub>2</sub>. Moreover, in the dry friction state, compared with the Ni20Cr coating, the Ni20Cr–MoS<sub>2</sub> coating performs better. At a load of 20 N, the friction and wear performances of the Ni20Cr–MoS<sub>2</sub> coating were the best, and the friction coefficient decreased by 11.63 %. Based on this, the relationships between the cohesive strength and tribological properties and between the wear mechanism and scratch mechanism of the coating are discussed.</p></div>\",\"PeriodicalId\":22009,\"journal\":{\"name\":\"Surface & Coatings Technology\",\"volume\":\"489 \",\"pages\":\"Article 131083\"},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2024-07-05\",\"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/S025789722400714X\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"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/S025789722400714X","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
Microstructure and properties of Ni20Cr–MoS2 composite coating by subsonic flame spraying
In this study, a Ni20Cr–MoS2 composite coating was fabricated using subsonic flame-spraying technology, and the effects of adding MoS2 on the microstructure, mechanical properties, and tribological properties of the coating were studied. The microstructure analysis of the coatings revealed that the Ni20Cr and Ni20Cr-MoS2 coatings prepared by subsonic flame spraying had fewer microscopic defects and significant particle flattening. After the addition of MoS2, the porosity of the coating decreased, whereas its microhardness increased. The cohesive strength of the coating was measured using the scratch method, and it was found to be enhanced after the addition of MoS2. Moreover, in the dry friction state, compared with the Ni20Cr coating, the Ni20Cr–MoS2 coating performs better. At a load of 20 N, the friction and wear performances of the Ni20Cr–MoS2 coating were the best, and the friction coefficient decreased by 11.63 %. Based on this, the relationships between the cohesive strength and tribological properties and between the wear mechanism and scratch mechanism of the coating are discussed.
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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