The temperature dependence of the saturation stress and dislocation substructure in fatigued copper single crystals
作者： Z.S. Basinski , A.S. Korbel , S.J. Basinski
DOI: 10.1016/0001-6160(80)90068-1
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摘要: Copper crystals oriented for single glide were fatigue tested in push-pull mode at 295, 77.4 and 4.2 K. The saturation flow stresses ladder spacings a function of temperature only not dependent on specimen history. observed 25, 48 73 MNm− 2, the 1.3, 0.7 0.45 μm K respectively. stress necessary to bow out primary screw dislocation segment within structure accounted about 80% stress. strain rate dependence fatigued specimens was higher than that similar deformed tension, but lower previously reported values.
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