Low cycle fatigue test was conducted on P92 steel with RPL50 dynamic creep tester at 630℃ and different strain amplitudes, and the 糖心产精国品免费入口*完整版 of P92 steel was studied. Based on the relationship between plastic strain energy density and 糖心产精国品免费入口*完整版, 糖心产精国品免费入口*完整版and low cycle fatigue life, low cycle fatigue life of P92 steel was predicted by energy-based 糖心产精国品免费入口*完整版 method, and compared with the test results. The results show that P92 steel was a cyclic softening material. The initial normalized 糖心产精国品免费入口*完整版increased with the increase of strain amplitudes, and 糖心产精国品免费入口*完整版decreased with the increase of cycles at different strain amplitudes. With the increase of strain amplitude, the elastic strain amplitude remained stable; the plastic strain amplitude increased approximately linearly; softening rate increased and was stable at about 0.3 finally. There was a good linear relationship between 糖心产精国品免费入口*完整版 and strain amplitude. The energy-based 糖心产精国品免费入口*完整版 method could accurately predict the high temperature low cycle fatigue life of P92 steel at 630℃, and the calculated predicted lives were all within ±1.5 times standard deviation of test lives.
引用该论文:ZHANG Zhaofu,XU Lianyong,MA Dongfang,XU Liang,HU Fengtao,JIANG Chenghu. High Temperature Low Cycle Fatigue Behavior and Life Prediction of P92 Steel[J]. Materials for mechancial engineering, 2019, 43(11): 1~4 糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版. 糖心产精国品免费入口*完整版的糖心产精国品免费入口*完整版及糖心产精国品免费入口*完整版[J]. 机械工程材料, 2019, 43(11): 1~4
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