Effect of holding time on high temperature microstructures of hydrogenation TC4 alloy before superplastic deformation;

This paper studied the superplastic deformation behavior of enhanced titanium-base composite material in-si- tu autogenesis TiB and TiC under conditions of temperature varied in the range of 920～1080℃ and initial strain rate was 2× 10~(-2)s~(-1)～10~(-4)s~(-1).

Optical microscope and scanning electronic microscope ( SEM) were employed to observe the microstructure evolution and fracture behavior in superplastic deformation of AZ31 Mg alloy and the values of deformation activation energy at various.

Finite element simulation and deformation analysis of superplastic forming of a Ti6Al4V blade;

Hot-press sintering and superplastic forming of nano-ceramics*;

Theory and practice in the field of superplastic forming ——Contribution of Professor Z. R. Wang in the research field of superplasticity;

On the basis of the rigid visco-plastic FEM technique,the numerical simulation of the cavity-damage evoluation process during superplastic bulging process was carried out using the model of cavity-damage evolution deduced from continuous damage mechanics.

In order to shorten forming time and to achieve uniform thickness of parts in superplastic bulging of void-sensitive materials, it is well known that maximum effective strain rate should be kept within a very small range.

Therefore, there will be more practical significance on its practical application to the expansion of the scope of a more complex shape of magnesium alloy parts, whether or not it has superplasticity study under certain conditions using superplastic bulging forming.

This process is to combine the superplastic deformation of steel with the heattreatment.

Effects of Intraoperative Autotransfusion and Blood Preservation on Erythrocyte Ultrastructure and Immunity;

objective:To observe the ultrastructure of GoreTex suture for artificial chordae replacement.