Abstract
The austenitic stainless steel cryogenic pressure vessels are mostly used for the extreme pressure equipment. Strain hardening austenitic stainless steel cryogenic pressure vessels will undergo the plastic deformation during forming and strengthening process. However, the excessive plastic deformation will cause the performance of vessels can not to meet the requirements of related manufacturing and testing standards. Determining the mechanical properties corresponding to the different strain intensities is very important for the safety evaluation of stain strengthened vessels. For normal temperature strain hardening technology, the influence of strain rate on strain hardening and ductility attenuation of austenitic stainless steel cryogenic vessels under normal temperature is studied in this paper, for being used to evaluate the quality and safety performance of the austenitic stainless steel pressure vessel.
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