超塑性变形的微观机制是以晶界滑动为主，晶内变形以及位错蠕变起了协调作用。
The principal superplastic deformation mechanism for the alloy is boundary sliding, assistant ones are deformations inside the grains and dislocations creep.
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。
Experimental results indicate that cavities are formed during superplastic deformation due to the inconsistency of grain boundary sliding.
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。
The deformation mechanism of the compression superplasticity of commercial AZ31 magnesium alloy-extruded is grain boundary sliding mechanism in coordination with the dynamic recrystallization.
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