Abstract:Pressure strengthening (PS) technology, also called cold stretching, is widely used to increase the allowable stress and reduce the weight of cryogenic pressure vessels (CPVs) made of austenitic stainless steels. However, with taking accounts of the manufacturing process and service environment of CPVs, the main source of the strengthening effect for yielding strength improvement is still unclarified. Therefore, in this work, the effect of the 9% pre-strain and low-temperature (-196 °C) on cryogenic mechanical… Show more
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