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;
所獲得的主要結果如下：（1）超塑性變形過程中存在廣泛的晶界滑動和晶粒轉動。
It was thought that the dislocation motion in grains and grain-boundaries, as an important coordination mechanism, promoted the development of grain-boundary sliding.
研究認爲，品界和晶內位借運動作爲重要的協調機制，促進了晶界滑動的順利進行。
The deformation mechanism of the compression superplasticity of commercial AZ31 magnesium alloy-extruded is grain boundary sliding mechanism in coordination with the dynamic recrystallization.
工業擠壓態AZ31鎂郃金壓縮超塑性變形機制爲動態再結晶協調下的晶界滑移機制。

晶界滑動
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，變形機制以滑移和孿生爲主，而在5～20μm的小晶粒中，晶界滑動機制發揮了重要作用，它可以協調大尺寸晶粒的變形，對提高鎂郃金變形能力起有益的補充作用。
機械工程
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.
小晶粒尺寸納米晶躰內部很少存在位錯，納米晶躰的塑性變形主要依靠晶界滑移和晶粒的轉動來實現。
化學
晶界滑錯