grain boundary sliding

基本解释

The main obtained results are as follows: (1) there are extensive grain-boundary sliding and grain rotation during superplastic deformation;
所获得的主要结果如下：（1）超塑性变形过程中存在广泛的晶界滑动和晶粒转动。
It was thought that the dislocation motion in grains and grain-boundaries, as an important coordination mechanism, promoted the development of grain-boundary sliding.
研究认为，品界和晶内位借运动作为重要的协调机制，促进了晶界滑动的顺利进行。
The deformation mechanism of the compression superplasticity of commercial AZ31 magnesium alloy-extruded is grain boundary sliding mechanism in coordination with the dynamic recrystallization.
工业挤压态AZ31镁合金压缩超塑性变形机制为动态再结晶协调下的晶界滑移机制。

晶界滑动
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。
机械工程
晶界滑移
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。
化学
晶界滑错