大尺寸纳米铜和银的制备及其微观缺陷与力学性能 - TNMSC 关键字: 大尺寸纳米金属； 微空隙； 力学性能[gap=1556]Key words: large bulk nanocrystalline metal; microvoids; mechanical properties
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紫铜棒材轴向加压精密塑性剪切变形区的 关键字: 紫铜棒材；剪切； 微观组织； 剪切断裂； 微孔[gap=1424]Key words: red copper bar; shearing; microstructure; shear fracture; microvoid
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microvoid coalescence 显微空穴聚结
microvoid filtration 微孔过滤
microvoid damage 微孔损伤
microvoid structure 微孔结构
interface microvoid 界面微孔
The crack formation of thermal shock fatigue is related to the nucleation, growth and join of microvoid.
热冲击疲劳裂纹的形成与微孔洞的形核、长大和连通有关。
The fatigue fracture characteristics were fatigue striation, ductile microvoid, and quasi-cleavage-like fracture characteristic.
疲劳断裂特征为疲劳条纹、韧窝及类似准解理状形貌特征。
We also found that the opacity was the symbol of the the formation of microvoid which advanced the shrinkage control effect of sample.
另外，试样的不透明度可以揭示收缩控制的效果，不透明的试样表明其中有微孔形成。
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