... 晶界断口 intergranular fracture 晶界滑移 grain boundary sliding 晶界脱溶物 grain boundary precipitate ...
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...ords magnesium alloy，superplasticity，grain boundary sliding，dislocation creep [gap=409]关键词 镁合金 超塑性 晶界滑动 位错滑移 ...
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• 颗粒边 界滑移 （ Grain boundary sliding ）：不同颗粒之间的相互滑 动，矿物颗粒本身无显著晶内变形，不发育形态或晶格优选定向，晶 内位错密度低。
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In a large size grain (about 40-50 um), the dislocation sliding and twinning are the main deformation mechanism, and in a small size grain (5-20 um), grain boundary sliding is another important mechanism to improve the ductility of magnesium alloy.
在40～50μm的大晶粒中，变形机制以滑移和孪生为主，而在5～20μm的小晶粒中，晶界滑动机制发挥了重要作用，它可以协调大尺寸晶粒的变形，对提高镁合金变形能力起有益的补充作用。
参考来源 - 稀土变形镁合金组织性能及加工工艺研究As known from the dislocation theory, dislocations seldom appear in the grain interior, and the plasticdeformation of nanocrystallite mainly carries out by the grain boundary sliding and grain rotation.
小晶粒尺寸纳米晶体内部很少存在位错，纳米晶体的塑性变形主要依靠晶界滑移和晶粒的转动来实现。
参考来源 - Fe、Ni、Zr纳米晶体微观结构与力学性能的分子动力学模拟·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
The striped band is the result of grain boundary sliding.
条纹带是晶界迁移的结果。
Experimental results indicate that cavities are formed during superplastic deformation due to the inconsistency of grain boundary sliding.
实验结果表明，孔洞是由于超塑性拉伸变形中品界滑动不协调而引起的。
The main deformation mechanisms are dislocation accommodated grain boundary sliding and dislocation slip plasticity when the grains grow to micro size.
晶粒长大到微米尺度时，变形机制主要是位错协调的晶界滑移和位错滑移塑性。
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