【摘要】 在Ｇｌｅｅｂｌｅ—１５００热模拟试验机上，利用相变超塑性现象，进行了低碳钢、铸铁的对接焊及低碳钢与不锈钢之间的对接焊研究。分析了工艺参数对焊接接头的组织和性能的影响，研究了相变超塑性焊接时，材料的塑性变形和相交超塑性对扩散系数的影响，对这一焊接方法的机理作了分析和探讨。更多还原

【Abstract】 With a Gleeble-1500 simulator,a study on butt welding of mild steel,cast iron and dissimilar welding of mild steel-stainless steel was conducted by means of transformation superplasticity.The influence of welding parameters on the microstructures and properties of the welded joints,the superplasticity during the welding process and its effects on diffusion coefficient were investigated,The mechanism of transformation superplasticity welding(TSW)was also discussed briefly.更多还原