GH105合金冷拉棒热致裂纹的分析  

Analysis on Heat Treatment Induced Crack in Cold Drawn Superalloy GH105 Rod

作　　者：李殿国[1] 徐凤琴[1] 李月[1] 冯涤[1] 浦惠康 

机构地区：[1]钢铁研究总院高温材料研究所,北京100081 [2]上海五钢特冶公司,上海200940

出　　处：《钢铁研究学报》2001年第3期37-39,共3页Journal of Iron and Steel Research

摘　　要：通过观察 GH 10 5合金冷拉棒的原始组织分析了这种冷拉棒产生热处理裂纹的原因 ,并提出了一种防止产生热处理裂纹的方法。 GH10 5合金冷拉棒表面存在的碎晶层和其内部的显微裂纹是热处理裂纹源。实验结果表明 。Analysis was made on heat treatment induced cracks in cold drawn superalloy GH105 rod by observing the microstructure in cold drawn state. It is suggested that the broken crystal layer and microcracks in surface layer of the cold drawn rod is the source of the heat treatment induced cracks. Experiment results show that removing the surface broken crystal layer of the cold drawn rod can prevent heat treatment induced cracks.

关 键 词：GH105合金 冷拉 棒材 热处理 裂纹 镍基高温合金 

分 类 号：TG166.7[金属学及工艺—热处理]