孪晶和位错运动是纳米银在超高压冲压波作用下形变的两个重要特征。
Twins and dislocation movement are two important deformation characteristics of silver nano powder under high pressure shock wave.
较详细地研究了LY12CZ铝合金的应变疲劳性能、疲劳裂纹生成区断口特征及疲劳位错组态。
The strain fatigue properties, the fractograph near fatigue crack sources and the fatigue dislocation structures of LY12CZ aluminium alloy are investigated in some detail.
利用光学显微术观察了原生晶体的表面形貌，发现了微管在晶体表面的露头点具有明显的多个螺位错成核特征。
It is found that outcrops of micropipes on the crystal surface possess remarkable feature of double or multiple screw dislocations.
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