理化检验-物理分册2013，Vol.49Issue(6)：407-409,412,4.
哥林柱断裂失效分析
Failure Analysis on Fracture of a Tie Bar
朱晓红 1陈国琦2
作者信息
- 1. 无锡市产品质量监督检验中心,无锡214101
- 2. 南京工业大学电光源材料研究所,南京210015
- 折叠
摘要
Abstract
The fracture reasons of a tie bar had been analyzed by means of chemical compositions analysis,fracture analysis,macroscopic examination,metallographic examination and mechanical properties test.The results show that the delayed fracture of the tie bar mainly resulted from the combination of thermal quenching residual stress and hydrogen in the steel,and the extra stress after slow loading caused hydrogen embrittlement when loading test.Severe banded segregation increased the additional structural stress as well.Finally corresponding methods and suggestions were put forward.关键词
哥林柱/残余应力/氢脆/带状偏析Key words
tie bar/ residual stress/ hydrogen brittleness/ banded segregation分类
矿业与冶金引用本文复制引用
朱晓红,陈国琦..哥林柱断裂失效分析[J].理化检验-物理分册,2013,49(6):407-409,412,4.
