稀土元素对低合金耐磨铸铁耐磨性的影响  

EFFECT OF RARE EARTHS ON ABRASIVENESS OF WHITE CAST IRON CONTAINING LOW ALLOY

作　　者：谢丹阳[1] 

机构地区：[1]燕山大学

出　　处：《物理测试》2003年第4期1-2,18,共3页Physics Examination and Testing

摘　　要：从改变共晶碳化物形貌的角度研究了稀土元素对低合金耐磨铸铁耐磨性的影响。结果表明,稀土元 素能改善共晶碳化物的形状,提高其耐磨性,尤其稀土变质后再经950℃×3h正火处理后效果更显著。The effect of rare earths on abrasiveness of white cast iron containing low alloy was studied with the view of improving eutectic carbides morphology. The results show that rare earths in low alloy white cast iron can improve eutectic carbide morphology and abrasiveness. The result of low alloy white cast iron after rare earths modification going through normalizing that is taken at 950℃ × 3 h is more no-ticeable.

关 键 词：低合金耐磨铸铁 耐磨性 稀土 共晶碳化物 变质 正火 

分 类 号：TG115.58[金属学及工艺—物理冶金]