基于内部失效机理预测评估渗碳Cr-Ni齿轮钢的超高周疲劳强度
Prediction and Evaluation of Very-high Cycle Fatigue Strength of Carburized Cr-Ni Gear Steel Based on Interior Failure Mechanism
基于内部失效机理预测评估渗碳Cr-Ni齿轮钢的超高周疲劳强度 |
| 邓海龙, 刘兵, 郭扬, 康贺铭, 李明凯, 李永平 |
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Prediction and Evaluation of Very-high Cycle Fatigue Strength of Carburized Cr-Ni Gear Steel Based on Interior Failure Mechanism |
| DENG Hailong, LIU Bing, GUO Yang, KANG Heming, LI Mingkai, LI Yongping |
| 图4 典型断口表面的形貌 |
| Fig.4 Observation of typical fracture surfaces (a) fisheye (σa = 575 MPa, Nf = 4254700 cycles, R = 0), (b) inclusion with FGA (σa = 575 MPa, Nf = 4254700 cycles, R = 0); (c) surface failure (σa = 650 MPa, Nf = 82100 cycles, R = 0), (d) inclusion (σa = 650 MPa, Nf = 82100 cycles, R = 0); (e) fisheye (σa = 455 MPa, Nf = 9494900 cycles, R = 0.3), (f) inclusion with FGA (σa = 455 MPa, Nf = 9494900 cycles, R = 0.3) |
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