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DP980-GMW2和Q&P980-GMW2拉剪型焊点疲劳性能研究
张志新; 王斌; 段启强; 张哲峰
2016-03-17
Source Publication热加工工艺
Issue5
Abstract研究了DP980-GMW2和Q&P980-GMW2钢板拉剪型焊点的金相组织、硬度分布和疲劳性能;采用扫描电镜分析了疲劳断口的形貌特征。结果表明:DP980-GMW2和Q&P980-GMW2钢板拉剪焊点的疲劳极限分别为1000和1200 N;焊核区都形成粗大的马氏体;由于马氏体回火,造成DP980和Q&P980钢板在热影响区都出现软化现象;疲劳断口由裂纹源、扩展区、瞬断区组成。
description.department辽宁科技大学材料与冶金学院 ; 中国科学院金属研究所 ; 东北大学材料与冶金学院
Keyword点焊 显微组织 硬度 疲劳极限 断口形貌
Language中文
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74307
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
张志新,王斌,段启强,等. DP980-GMW2和Q&P980-GMW2拉剪型焊点疲劳性能研究[J]. 热加工工艺,2016(5).
APA 张志新,王斌,段启强,&张哲峰.(2016).DP980-GMW2和Q&P980-GMW2拉剪型焊点疲劳性能研究.热加工工艺(5).
MLA 张志新,et al."DP980-GMW2和Q&P980-GMW2拉剪型焊点疲劳性能研究".热加工工艺 .5(2016).
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