Gigacycle fatigue behaviors of two SNCM439 steels with different tensile strengthes |
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| Institution: | Zheng Duan · Xian-Feng Ma · Hui-Ji Shi AML,Department of Engineering Mechanics,School of Aerospace,Tsinghua University,100084 Beijing,China Ryosuke Murai · Eiichi Yanagisawa Mitsubishi Heavy Industries,Ltd.,Tokyo,Japan |
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| Abstract: | Gigacycle fatigue behaviors of two SNCM439 steels with different tensile strengthes were experimentally studied by rotating bending tests,to investigate the effects of the tensile strength obtained by different heat treatment processes on very high cycle fatigue failure mechanisms.The material with higher tensile strength of 1 710 MPa exhibited typical gigacycle fatigue failure characteristics,whereas one with lower tensile strength of 1 010 MPa showed only traditional fatigue limit during the tests and no ... |
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