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LING Xu-yu, LI Cong, SHEN Bao-luo, WANG Yan-feng, GAO Sheng-ji, YING Shi-hao(1. School of Materials Science and Engineering, Sichuan University, Chengdu 610065, China; 2. National Key Laboratory for Nuclear Fuel and Materials, Nuclear Power Institute of China, Chengdu 610041, China). Study on Low Cycle Fatigue Behavior of Zircaloy-4 Plate[J]. Atomic Energy Science and Technology, 2003, 37(S1): 77-77. DOI: 10.7538/yzk.2003.37.S1.0077
Citation: LING Xu-yu, LI Cong, SHEN Bao-luo, WANG Yan-feng, GAO Sheng-ji, YING Shi-hao(1. School of Materials Science and Engineering, Sichuan University, Chengdu 610065, China; 2. National Key Laboratory for Nuclear Fuel and Materials, Nuclear Power Institute of China, Chengdu 610041, China). Study on Low Cycle Fatigue Behavior of Zircaloy-4 Plate[J]. Atomic Energy Science and Technology, 2003, 37(S1): 77-77. DOI: 10.7538/yzk.2003.37.S1.0077
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  • Low cycle fatigue (LCF) behavior of a recrystallized zircaloy-4 plate were investigated using symmetric tension-compression test at room temperature and 400 ℃, respectively. The results indicate that alloy displays cyclic softening at the strain amplitude lower than 0. 8% and cyclic hardening at strain amplitude higher than 0. 8% at room temperature, and cyclic hardening at the total strain range at 400 ℃. The curves of fatigue lifetime vs. cyclic plastic strain range show that the alloy obeys Coffin-Manson relationship, and has better LCF property at room temperature than 400 ℃. Finally, SEM was used to investigate the fractural characterization.
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