稀土元素改善高锰钢焊条的组织性能  

IMPROVEMENT OF MICROSTRUCTURE FOR HIGH - MANGANESE STEEL WELDING ELECTRODE BY ADDING RARE EARTHS

作　　者：郭面焕[1] 邵德春[1] 杨建国[1] 张银根[2] 董卫国[3] 

机构地区：[1]哈尔滨工业大学现代焊接生产中心国家重点实验室,150001 [2]天津市大港油田金属厂,300001 [3]哈尔滨焊接研究所,150080

出　　处：《焊接》1999年第12期31-34,共4页Welding & Joining

摘　　要：在高锰钢焊条药皮中加入一定比例的稀土元素,具有细化晶粒,提高塑性、韧性及强度,改善组织形态,净化焊缝金属的作用,从而有效地降低了高锰钢焊接时在熔合区产生热裂纹的敏感性.对于高锰钢的修补、堆焊及构件之间的强度焊接均优于不含稀土元素的同类焊接材料.By adding some quantity of rare earths into coating of high manganese steel welding electrode, it is useful to fine the grain to improve the plasticity toughness, strength and microstructure,to purify the weld metal, and then it is effective to reduce the hot cracking sensitivity of bond area in welding of high manganese steel. The strength of weld metal containing rare earths is better than that of ordinary electrode.

关 键 词：稀土元素 高锰钢焊条 液化裂纹 焊条 

分 类 号：TG422.1[金属学及工艺—焊接]