Research on Low Temperature Embrittlement of Advanced High Strength Steel
Brittleness of advanced high strength steel(AHSS)induced by low temperature is one of automakers” greatest concerns,considering the wide application of AHSS in structural components of car body.The toughness and brittleness of several kinds of advanced high strength steel at low temperature have been investigated,by using instrumented Charpy impact method.The results show that traditional impact test is useful for evaluating sheet metal”s low temperature toughness ans brittleness.The absorbed energy and fracture surfaces that change with temperature are compared.The effect of prestrain on the change of low temperature embrittlement has also been investigated.The results indicate that forming or prestrain has negative effect on low temperature toughness.
low temperature embrittlement charpy impact prestrain
Zhou Yedong Ding Chen Zhang Jianwei Li Wei Zhou Shu Fang Jian
Testing Center,Baosteel Research Institute,Shanghai 201900,China Automotive Steel Research Institute,Baosteel Research Institute,Shanghai 201900,China
国内会议
上海
英文
1-5
2015-10-21（万方平台首次上网日期，不代表论文的发表时间）