应力比对含缺陷选区激光熔化TC4合金稳态疲劳裂纹扩展速率的影响 |
戚钊, 王斌, 张鹏, 刘睿, 张振军, 张哲峰 |
Effects of Stress Ratio on the Fatigue Crack Growth Rate Under Steady State of Selective Laser Melted TC4 Alloy with Defects |
QI Zhao, WANG Bin, ZHANG Peng, LIU Rui, ZHANG Zhenjun, ZHANG Zhefeng |
图7 SD和LD试样在R = 0.1和ΔK = 16 MPa·m1/2条件下疲劳断口的SEM像 |
Fig.7 SEM images of fractographies of SD (a) and LD (b) specimens at R = 0.1 and ΔK = 16 MPa·m1/2 |
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