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测量了高强度钢的紧凑拉伸试样在疲劳过程中的10MHz超声衰减,研究了疲劳裂纹前端区域内的位错动态行为。
The 10MHz ultrasonic attenuation during the fatigue process of the compact tensile specimens of high strength steel was measured and the dynamic behavior of dislocations in the front region of the fatigue crack was studied.