显微组织对球磨机钢球磨损量的影响  

Effect of microstructure on abrasion amount of steel balls for mill

作　　者：张达富 刘锦燕[1] 陈义[1] 

机构地区：[1]攀钢集团研究院有限公司钒钛资源综合利用国家重点实验室,四川攀枝花617000

出　　处：《金属热处理》2016年第1期153-156,共4页Heat Treatment of Metals

摘　　要：分别采用磨损试验机、金相显微镜和扫描电镜(SEM)等研究了两种热处理工艺下的钢球显微组织对磨损量的影响。结果表明,硬度较大的含马氏体组织的钢球磨损量较大,而硬度相对较低的回火马氏体+残留奥氏体磨损量较低。钢球的磨损机理以剥落方式为主,这说明钢球的耐磨性与显微组织有直接关系。Effect of microstructure on abrasion of steel balls by two different heat-treatment was studied by the abrasion-test machine,metalloscope and scanning electron microscopy（ SEM）. The results show that the abrasion amount of high hardness steel balls with martensite microstructure is larger,and the relatively low hardness of tempered martensite and retained austenite erosion rate is lower. It is found that the abrasion mechanism of steel balls is given priority with peeling method,which indicates that the wear resistance of steel balls is directly related to the microstructure.

关 键 词：磨损量 显微组织 马氏体 剥落 磨损机理 

分 类 号：TG156.5[金属学及工艺—热处理]