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超塑性技术在我国科学发展及工业生产中已开始显示出它的巨大优点。特别是钛合金的超塑性成形技术的研究对加强我国国防有极其重要的意义,值得重视和深入研究。一、超塑性的定义和分类迄今为止,超塑性还没有一个明确的定义。在相当长的时期内,人们仅仅以拉伸试验的延伸率超过100％作为超塑性的标准。实际上,超塑性是合金材料在特定条件下,只需要
Superplasticity technology in China’s scientific development and industrial production has begun to show its great advantages. In particular, the study of superplastic forming technology of titanium alloy is of great significance to strengthen our national defense. It is worthy of attention and in-depth study. First, the definition and classification of superplasticity Up to now, there is no clear definition of superplasticity. For a long period of time, people have been using superplasticity as the only criterion for tensile elongation of over 100%. In fact, superplasticity is alloy material only under certain conditions