金属的超塑性现象虽然早在二十年代就已发现,但受到重视却是在第二次世界大战以后。在六十年代由W·A·Backofen等人做了奠基性的工作。现在,超塑性已经成为有广阔发展前途的成形技术基础。不仅有色金属及其合金可以实现超塑性,而且铸铁、高碳钢、超高碳钢、合金钢以及通常难以变形的陶瓷等材料也可以实现超塑性。超塑性成为物理冶金学、金属材料学和工艺学共同的研究课题。近几年来,我国的超塑性研究 Although the superplasticity phenomenon of metal was discovered as early as the 1920s, it was taken seriously after World War II. In the sixties by WA · Backofen, who made a groundbreaking work. Now, superplasticity has become the basis of forming technology with broad prospects for development. Not only non-ferrous metals and their alloys can be superplasticized, but superplasticisation is also possible with cast iron, high-carbon steels, ultra-high carbon steels, alloy steels and often difficult-to-deform ceramics. Superplasticity has become a common research topic in physical metallurgy, metal materials science and technology. In recent years, China’s superplasticity research