Microstructure and Wear/corrosion Resistance of Stainless Steel Laser-alloyed with Mn+W2C, Mn+NiWC and Mn+SiC
作者机构：School of Metallurgical Engineering Jiangsu University of Science and Technology CITIC Heavy Cast Iron Industry Co. Ltd.
出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报-材料科学版(英文))
年 卷 期：2025年第1期
页 面：283-294页
核心收录：
学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化]
摘 要：In-situ formed high Mn steel coating reinforced by carbides was formed by laser surface alloying （LSA）.Laser alloyed layers on 1Cr18Ni9Ti steel with Mn+W2C （specimen A）,Mn+NiWC （specimen B） and Mn+SiC （specimen C） powders were fabricated to improve the wear and corrosion behavior of 1Cr18Ni9Ti steel blades in high speed *** evolution,phases,element distribution,microhardness,wear and corrosion behavior of the laser alloyed layers were *** indicated that high Mn steel matrix composites with undissolved W2C,WC and other in-situ formed carbides were formed by LSA with Mn+W2C and Mn+NiWC while SiC totally dissolved into the high Mn matrix when adding Mn+*** as the binding phase in Ni-WC powder decreased the crack sensitivity of the alloyed layer as compared with the addition of W2C *** improvement in average microhardness was achieved in the matrix in specimen A,B and C,with the value of 615,602 and 277 HV0.5,while that of the substrate was 212 *** increase of microhardness,wear and corrosion resistance is highly corelated to microstructure,formed phases,type and content of carbides,micro-hardness and toughness of the alloyed layers.
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