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通过对耐磨新钢种40MnTiB、75SiMn采用新热处理工艺的试验研究,阐述了钢的耐磨性与热处理、金相组织之间的关系,说明了板条马氏体钢具有韧性与耐磨性的优良配合,可以取代高碳调质钢,用于耐磨抗冲击部件,简化工艺、节省能源。通过对75SiMn钢等温和复合淬火处理后其耐磨性比65Mn钢提高50％以上的试验研究,说明了采用等温和复合淬火,可大幅度提高高碳低合金钢的耐磨性。文中还对金属材料的特性时耐磨性的影响进行了分析讨论。
The new wear-resistant steel 40MnTiB, 75SiMn new heat treatment process of experimental study elaborated on the wear resistance of steel and heat treatment, the relationship between the microstructure shows lath martensitic steel with toughness and wear resistance The excellent cooperation, can replace the high-carbon quenched and tempered steel, for wear-resistant impact components, simplify the process, save energy. Through the isothermal compound quenching of 75SiMn steel, its wear resistance is more than 50% higher than that of 65Mn steel, which shows that the wear resistance of high carbon and low alloy steel can be greatly improved by using isothermal compound quenching. The paper also analyzes the influence of the wear resistance of the metal material when it is used.