理化检验-物理分册Issue(10)：733-735,739,4.DOI:10.11973/lhjy-wl201510014
HRB400热轧带肋钢筋弯曲加工断裂原因分析
Causes Analysis on Bending Fracture of HRB400 Hot Rolled Ribbed Bars
丁礼权 1徐志 1范植金 1王晓东 2张帆 1徐志东1
作者信息
- 1. 武汉钢铁 集团 公司研究院，武汉 430080
- 2. 武汉钢铁股份有限公司 制造部，武汉 430083
- 折叠
摘要
Abstract
HRB400 hot rolled ribbed bar is one of the commonly used steels in construction industry.The HRB400 hot rolled ribbed bars of an iron and steel plant fractured when they were bended at the job site,and the bending fracture reasons were analyzed by means of chemical compositions analysis,metallographic examination, fracture SEM analysis,tensile test and bending test.The results show that bending diameter being too small and martensite abnormal microstructure caused by composition segregation,were two main causes for the bending fracture of the HRB400 hot rolled ribbed bars.关键词
热轧带肋钢筋/断裂/弯心直径/成分偏析/马氏体Key words
hot rolled ribbed bars/fracture/bending diameter/composition segregation/martensite分类
矿业与冶金引用本文复制引用
丁礼权,徐志,范植金,王晓东,张帆,徐志东..HRB400热轧带肋钢筋弯曲加工断裂原因分析[J].理化检验-物理分册,2015,(10):733-735,739,4.
