缺口应力集中系数对TC4 ELI合金低周疲劳性能的影响 |
刘天福, 张滨, 张均锋, 徐强, 宋竹满, 张广平 |
Effect of Notch Stress Concentration Factors on Low-cycle Fatigue Performance of TC4 ELI Alloy |
LIU Tianfu, ZHANG Bin, ZHANG Junfeng, XU Qiang, SONG Zhuman, ZHANG Guangping |
图6 三种缺口应力集中系数的TC4 ELI合金缺口试样在应变幅为0.3%控制下疲劳断口的SEM照片 |
Fig.6 SEM images of fatigue fracture surfaces of TC4 ELI alloy notched specimens with three different notch stress concentration factors under the control of strain amplitude of 0.3% (a, d, g) Kt =1.97, (b, e, h) Kt =2.64, (c, f, i) Kt =3.62 |
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