【摘要】 研究了TC4钛合金板激光焊缝的超塑性变形行为、组织演变,以及激光焊接板的横向超塑性变形特征。引进等轴化系数表征超塑性变形过程中焊缝组织等轴化进程,并对激光焊接/超塑成型技术基础问题提出了进一步展望。更多还原

【Abstract】 Superplastic deformation behavior and microstructure transition of Ti6A14V laser welding seam are investigated,and the transversal superplastic deformation characteristic of welded plate is also studied. The equiaxed index is introduced to evaluate the process of microstructure transition,and the further research on laser beam welding superplastic forming technique is prospected.更多还原