贝氏体钢轨的低温疲劳裂纹扩展行为
Low-Temperature Fatigue Crack Propagation Behavior of Bainitic Rail Steel
(a) ΔK = 8.0 MPa·m1/2 (b) ΔK = 10.0 MPa·m1/2
(c-f) ΔK = 20.0 MPa·m1/2 (Figs.8d and f show the locally enlarged images of Figs.8c and e, respectively)
贝氏体钢轨的低温疲劳裂纹扩展行为 |
| 刘蓉, 高古辉, 桂晓露, 白秉哲 |
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Low-Temperature Fatigue Crack Propagation Behavior of Bainitic Rail Steel |
| LIU Rong, GAO Guhui, GUI Xiaolu, BAI Bingzhe |
| 图8 不同ΔK时贝氏体钢轨在室温下疲劳断口形貌的SEM像 |
| Fig.8 SEM images showing the fatigue fracture surface morphologies of bainitic rail steel tested under various ΔK at RT (a) ΔK = 8.0 MPa·m1/2 (b) ΔK = 10.0 MPa·m1/2 (c-f) ΔK = 20.0 MPa·m1/2 (Figs.8d and f show the locally enlarged images of Figs.8c and e, respectively) |
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