首次采用Ｇｌｅｅｂｌｅ－１５００热模拟试验机进行了不同金属材料相变超塑性焊接过程及接头性能的探讨。试验证明低碳钢、铸铁及Ａ３－Ｔ８异种钢接头利用相变诱发的超塑性状态来进行固相焊接是可行的，作为介于一般压力焊与扩散焊之间的一种新焊接方法，相变超塑性焊接对很多金属材料的连接具有一定的应用前景。 The Gleeble-1500 thermal simulation testing machine was used for the first time to discuss the phase change superplastic welding process and the joint performance of different metal materials. Experiments show that low-carbon steel, cast iron and A3-T8 dissimilar steel joints using phase-induced superplasticity state is feasible for solid-state welding, as between the general pressure welding and diffusion welding a new welding method, the phase Variable superplastic welding on the connection of many metal materials have a certain application prospects.