烧结钢组织及耐磨性的研究

【作者】 吕海波；

【导师】 杨德统；

【作者基本信息】 南京理工大学 ， 材料科学与工程， 2002， 硕士

【摘要】 以Fe-C-Cu合金为基粉，添加合金元素Ni、Mo、W制备烧结钢，并对试样进行了微观组织和耐磨性分析，系统地研究了热处理工艺及合金元素镍、钼、钨的复合添加对烧结钢组织和耐磨性的影响。 实验结果表明：本文中几种烧结钢的磨损机制均是由磨粒磨损、粘着磨损、和疲劳磨损共同作用的，且以磨粒磨损为主；在烧结态下，复合添加合金元素镍、钼的烧结钢的耐磨性能最好，这是因为生成了大量的硬质相贝氏体；而淬火、低温回火态下，则复合添加钼、钨的烧结钢的耐磨性能最好，这是因为热处理态下添加钼、钨的烧结钢的硬度最高。更多还原

【Abstract】 Mixing alloy elements of Ni,Mo,W in Fe-C-Cu alloy ,the sintered steel was prepared . The microstructure and wear resistance properties of the sintered steel had been studied. The influence of heat-treated technology and the alloy elements on the microstructure and the wear resistance had been studied and analyzed .Results of the experiments showed that the wear mechanisms of the sintered steel included abrasive wear,adhesive wear and fatigue wear, and it was the abrasive wear most important .It was the sintered steel mixed by Ni,Mo that was the best on the wear resistance , because of the great lot of Bainite; The sintered steel quenched and low temperature tempered mixed by Mo,W that was the best on the wear resistance ,because of the rigidity of the steel was the highest.更多还原