It's obtained that main mechanism of superplastics is grain boundary sliding.
据此得出超塑性变形的主要机制是晶界滑动、孔洞和位错运动松弛晶界引起应力集中，协调了晶界滑动的连续进行。
Microstructural observations suggest that grain boundary sliding (GBS) makes a substantial contribution to the superplastic deformation, and the.
显微组织观察和断口分析表明 ,工业态AZ31镁合金超塑变形主要由晶界滑动机制所控制 ,同时 ,动态再结晶也是合金超塑变形的一种协同机制。
Its main mechanism of superplasticity deformation is grain boundary sliding,and the main r.
Ti3Al金属间化合物超塑变形的主要机制是晶界滑动,失效的主要原因是空洞的形成和连接。
Contrary to be crack sources and make mechanical properties of alloys deteriorate as it has been always considered, η phase was found to have little effect on room temperature properties and furthermore, it improved the high temperature ductility of the alloy via blocking the grain boundary slip due to it.
通过对一种Fe-Ni-Cr合金进行过时效后晶界上析出η相的研究发现,由于晶界η相与合金基体保持共格关系,η相对合金的室温性能影响不大;并且在高温变形条件下η相形成凸起,阻碍晶界滑动,减小在晶角处的应力集中,从而提高合金的高温塑性。
