By using the metallographical methed,the microstructtre changes before and after heat treatment ofcentrifugally casted dual-metal abrasion resistance cylinder sleeve were studied.

• 用金相方法研究了离心铸造双金属耐磨套简热处理前后的显旺组织变化，并对双金属耐磨套筒复合面的结构和物理特性进行了研究。