In the field of welding of high-strength structural steels, the 700 MPa strength category represents a kind of boundary Overmatched (OM) consumables are also available, but the behavior of various mismatch types under cyclic loading condition is not yet clear. In order to know the fatigue crack propagation resistance of 700 MPa strength category steels and their gas metal arc welded joints fatigue crack growth tests were performed on statistically representative samples. Matching/overmatching (M/OM) mismatch type was tested, the tests results were analyzed and fatigue crack propagation limit curves were determined. The different mismatch types, our and previous results were compared. It can be concluded that M type is the optimal and M/OM type is more beneficial than simple OM type.
机构:
Chongqing Jiaotong Univ, Sch Mech & Elect & Vehicle Engn, Chongqing 400074, Peoples R China
Mat Acad Jitri, Mat Bigdata & Applicat Div, Suzhou 215131, Peoples R ChinaChongqing Jiaotong Univ, Sch Mech & Elect & Vehicle Engn, Chongqing 400074, Peoples R China
Zou, Jie
Xiang, Huayang
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Chongqing Jiaotong Univ, Sch Mech & Elect & Vehicle Engn, Chongqing 400074, Peoples R China
Mat Acad Jitri, Mat Bigdata & Applicat Div, Suzhou 215131, Peoples R ChinaChongqing Jiaotong Univ, Sch Mech & Elect & Vehicle Engn, Chongqing 400074, Peoples R China
Xiang, Huayang
Zhan, Zhenfei
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Chongqing Jiaotong Univ, Sch Mech & Elect & Vehicle Engn, Chongqing 400074, Peoples R ChinaChongqing Jiaotong Univ, Sch Mech & Elect & Vehicle Engn, Chongqing 400074, Peoples R China
Zhan, Zhenfei
Zhuo, Wenbo
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Mat Acad Jitri, Mat Bigdata & Applicat Div, Suzhou 215131, Peoples R China
Nanjing Univ Sci & Technol, Sch Mech Engn, Nanjing 210094, Peoples R ChinaChongqing Jiaotong Univ, Sch Mech & Elect & Vehicle Engn, Chongqing 400074, Peoples R China
Zhuo, Wenbo
Huang, Li
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Chongqing Jiaotong Univ, Sch Mech & Elect & Vehicle Engn, Chongqing 400074, Peoples R China
Nanjing Tech Univ, Key Lab Light Weight Mat, Nanjing 210009, Peoples R ChinaChongqing Jiaotong Univ, Sch Mech & Elect & Vehicle Engn, Chongqing 400074, Peoples R China
Huang, Li
Ji, Yuxiang
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Mat Acad Jitri, Mat Bigdata & Applicat Div, Suzhou 215131, Peoples R China
Xian Jiaotong Liverpool Univ, Sch Adv Technol, Suzhou 215123, Peoples R ChinaChongqing Jiaotong Univ, Sch Mech & Elect & Vehicle Engn, Chongqing 400074, Peoples R China
Ji, Yuxiang
Liu, Qing
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Mat Acad Jitri, Mat Bigdata & Applicat Div, Suzhou 215131, Peoples R ChinaChongqing Jiaotong Univ, Sch Mech & Elect & Vehicle Engn, Chongqing 400074, Peoples R China