1·The results showed that grain boundary width and grain boundary form of the aluminum alloy would change during superplastic deformation.
结果表明，此状态下的铝合金在超塑性变形过程中晶界宽度和形态会发生改变。
2·It also shows the prospects for applying the superplastic forming technique in some fields.
展示了超塑性成形技术在某些领域中的应用前景。
3·Elongation of the sample during superplastic deformation has a close relation with grain boundary width.
试样在超塑性变形时产生的伸长率与晶界宽度有密切联系。
4·So this paper will discuss the effect of defects on necking and stability of tensile deformation, which will help up to understand and master superplastic tensile deformation correctly.
研究讨论缺陷对于拉伸变形的颈缩、稳定性的作用，这有利于正确理解和掌握超塑性拉伸变形过程。
5·The technique of superplastic extrusion of lock core with cross-shaped groove are researched in this paper.
对十字槽型锁芯的超塑性挤压技术进行了研究。