A superplastic tension test was carried out in order to examine the anisotropy of superplasticity in hot rolled sheet of Ti-10V-2Fe-3Al. Flow stress in the longitudinal (L) direction is higher than that in the transve...A superplastic tension test was carried out in order to examine the anisotropy of superplasticity in hot rolled sheet of Ti-10V-2Fe-3Al. Flow stress in the longitudinal (L) direction is higher than that in the transverse (T) direction of the sheet. The peak value of elongation in L direction specimens is also higher within a strain rate range of 0.0005-0.0083/s. Based on microstructure changes before and after superplastically deformation, an analysis is made for multi-necking on the T specimen after tension. The flowlines in superplastically deformed specimen are described.展开更多
文摘A superplastic tension test was carried out in order to examine the anisotropy of superplasticity in hot rolled sheet of Ti-10V-2Fe-3Al. Flow stress in the longitudinal (L) direction is higher than that in the transverse (T) direction of the sheet. The peak value of elongation in L direction specimens is also higher within a strain rate range of 0.0005-0.0083/s. Based on microstructure changes before and after superplastically deformation, an analysis is made for multi-necking on the T specimen after tension. The flowlines in superplastically deformed specimen are described.
