Q345B钢Z向拉伸断口形貌的分析  

Analysis of Z- directional Tensile Fracture Morphology for Q345B Steel

作　　者：刘晓美[1] 高峰[1] 

机构地区：[1]济南钢铁集团有限公司

出　　处：《宽厚板》2013年第5期16-18,共3页Wide and Heavy Plate

摘　　要：通过对不同炉、批次Q345B钢Z向拉伸断口形貌进行分析,研究了断口形貌与塑性夹杂物级别和Z向断面收缩率(Z)之间的关系,指出在一定的硫含量条件下,塑性夹杂物级别是决定断口形貌及Z向断面收缩率的关键。By analyzing Z - directional temile fracture morphology of Q345B steel from different heats and batches, the relationship between fracture morphology and plastic inclusion ratings, Z - directional reduction of area, points out that under certain conditions of S content, the plastic inclusion rating is the key factor to influence fracture morphology and Z - directional reduction of area.

关 键 词：Q345B 断口形貌 塑性夹杂物级别 

分 类 号：TG115[金属学及工艺—物理冶金]