5Cr21Mn9Ni4N(21-4N)钢冷拉材纵向裂纹的分析  

ANALYSIS OF VERTICAL CRACKLE IN COLD DRAWING STEEL PRODUCT OF 5Cr21Mn9Ni4N(21-4N) STEEL

作　　者：李玉清 张民勇 范植金 夏晓玲 

机构地区：[1]大冶钢厂

出　　处：《钢铁》1993年第4期40-43,39,共5页Iron and Steel

摘　　要：采用断口萃取碳复型和金属薄膜技术,应用透射电子显微镜分析,研究了21-4N钢冷拉材纵向裂纹产生的原因及消除和改善的可能途径。The formation of vertical crackings in cold drawing steel prcduet was investigated by using CM12 electron microscope on the carbon extraction replica and foil. On the basis uf the study the possible ways to eliminate the cracking are discussed. Present research may help a lot for imptevement of the cold drawing steel product.

关 键 词：冷拉 纵向裂纹 断口 复型 金属薄膜 透射电子显微镜 消除 膜技术 改善 

分 类 号：TF777.1[冶金工程—钢铁冶金] TG356[金属学及工艺—金属压力加工]