稀土对半钢热加工性能的影响  

EFFECT OF RE ADDITION ON HOT WORKABILITYOF CAST SEMI-STEEL

作　　者：吴浩泉[1] 田永君[1] 郭景海[1] 李富荣[1] 王爱荣[1] 项程云 

机构地区：[1]燕山大学 [2]齐齐哈尔钢厂

出　　处：《钢铁》1989年第4期41-47,共7页Iron and Steel

摘　　要：本文研究了稀土对半钢热加工性能的影响。在900～1100℃的温度范围及2×10^(-3)～1×10^(-2)s^(-1)的变形速度范围内,研究稀土加入后热拉伸试样断面收缩率及断口形貌变化情况。由此得出,改善半钢热加工性能的合适的稀土加入量应为0.02～0.05％。The effect of RE (Rare Earth Element) addition on the hot workability of cast semi-steelhas been studied. The reduction of area and change in fracture morphology because of RE ad-dition after hot tensile fracture at temperature 900～1100℃ and strain rate 2×10^(-3)～1×10^(-2)s^(-1)were examined, thereby leading to the conclusion that the optimum amount of RE addition isabout 0.02～0.05% for improving the hot workability of cast semi-steel.

关 键 词：半钢 热加工性能 轧辊 稀土 

分 类 号：TG333.17[金属学及工艺—金属压力加工]