{"title":"Mn+Cr3C2和Mn+NiCr-C激光合金化提高不锈钢耐磨性和耐腐蚀性","authors":"Rui Zhou , Guifang Sun","doi":"10.1016/j.surfcoat.2022.129076","DOIUrl":null,"url":null,"abstract":"<div><p><span>In-situ formed high Mn steel reinforced by carbides was fabricated by laser surface alloying with Mn + Cr</span><sub>3</sub>C<sub>2</sub><span><span><span> and Mn + NiCr-C powders to improve the wear and corrosion behavior of 1Cr18Ni9Ti steel. Microstructure, phases, element distribution, microhardness, wear and corrosion behavior of the laser alloyed layers were investigated. Results indicated that high Mn steel </span>matrix composites with </span>austenite<span> dendrites, eutectics and pine-needle shaped colonies were formed by laser surface alloying. Furthermore, there are lots of large block primary Cr</span></span><sub>7</sub>C<sub>3</sub> in the layer alloyed with Mn + Cr<sub>3</sub>C<sub>2</sub><span>. An improvement in average microhardness in the matrix of both alloyed layers was achieved. The layer alloyed with Mn + NiCr-C showed the best wear and corrosion resistance, which is closely related to microstructure uniformity, Cr distribution, formed phases, type and content of carbides, microhardness and toughness of the alloyed layers.</span></p></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":null,"pages":null},"PeriodicalIF":5.3000,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Laser alloying with Mn + Cr3C2 and Mn + NiCr-C for improved wear and corrosion resistance of stainless steel\",\"authors\":\"Rui Zhou , Guifang Sun\",\"doi\":\"10.1016/j.surfcoat.2022.129076\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span>In-situ formed high Mn steel reinforced by carbides was fabricated by laser surface alloying with Mn + Cr</span><sub>3</sub>C<sub>2</sub><span><span><span> and Mn + NiCr-C powders to improve the wear and corrosion behavior of 1Cr18Ni9Ti steel. Microstructure, phases, element distribution, microhardness, wear and corrosion behavior of the laser alloyed layers were investigated. Results indicated that high Mn steel </span>matrix composites with </span>austenite<span> dendrites, eutectics and pine-needle shaped colonies were formed by laser surface alloying. Furthermore, there are lots of large block primary Cr</span></span><sub>7</sub>C<sub>3</sub> in the layer alloyed with Mn + Cr<sub>3</sub>C<sub>2</sub><span>. An improvement in average microhardness in the matrix of both alloyed layers was achieved. The layer alloyed with Mn + NiCr-C showed the best wear and corrosion resistance, which is closely related to microstructure uniformity, Cr distribution, formed phases, type and content of carbides, microhardness and toughness of the alloyed layers.</span></p></div>\",\"PeriodicalId\":22009,\"journal\":{\"name\":\"Surface & Coatings Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2022-12-15\",\"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/S0257897222009975\",\"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/S0257897222009975","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}
Laser alloying with Mn + Cr3C2 and Mn + NiCr-C for improved wear and corrosion resistance of stainless steel
In-situ formed high Mn steel reinforced by carbides was fabricated by laser surface alloying with Mn + Cr3C2 and Mn + NiCr-C powders to improve the wear and corrosion behavior of 1Cr18Ni9Ti steel. Microstructure, phases, element distribution, microhardness, wear and corrosion behavior of the laser alloyed layers were investigated. Results indicated that high Mn steel matrix composites with austenite dendrites, eutectics and pine-needle shaped colonies were formed by laser surface alloying. Furthermore, there are lots of large block primary Cr7C3 in the layer alloyed with Mn + Cr3C2. An improvement in average microhardness in the matrix of both alloyed layers was achieved. The layer alloyed with Mn + NiCr-C showed the best wear and corrosion resistance, which is closely related to microstructure uniformity, Cr distribution, formed phases, type and content of carbides, microhardness and toughness of the alloyed layers.
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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