湖南大学学报（自然科学版）Issue(7)：30-34,5.
多元合金化处理对高锰钢组织和性能的影响
Effect of Multi-elements Alloying on the Microstructure and Properties of Hadfield Steel
摘要
Abstract
Hadfield steels were prepared by adjusting the components of the alloys by adding Cr-V-Ti-RE,Cr-V-Ti,Cr-RE ,and V-Ti-Nb-RE,respectively.The investigation was carried out to study the effect of multi-elements alloying on the microstructure and mechanical properties of Hadfield steel through metal-lographic microscope,scanning electron microscopy,mechanical properties tests and abrasive wear tests. The results have indicated that grains are refined observably,the form and distribution of impurities are improved,and the hardness,impact toughness and wear resistance increase due to multi-elements allo-ying.Meanwhile,the specimen with Cr-V-Ti-RE elements has optimal comprehensive performances,its hardness and impact toughness,compared with the one without Cr-V-Ti-RE elements,increase by 12.4%and 32.5% respectively,and the wear resistance increases by 13.9%~45.4%.The wear mechanism of Hadfield steel is pit deformation and microscopic cutting under middle and low impact energy,and spalling fatigue under high impact energy.关键词
合金化/显微组织/耐磨性/高锰钢/冲击磨料磨损Key words
alloying/microstructure/wear resistance/Hadfield steel/abrasive wear分类
矿业与冶金引用本文复制引用
傅定发,蔡家财,高文理..多元合金化处理对高锰钢组织和性能的影响[J].湖南大学学报（自然科学版）,2014,(7):30-34,5.基金项目
国家自然科学基金资助项目(51271076) （51271076）
广东省教育部产学研结合项目(2011B090400500) （2011B090400500）
