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一、原理由于正电子对缺陷的极端灵敏性,正电子湮灭方法已经广泛地用于研究金属材料的空位、空洞和位错等缺陷。本文尝试用该方法估测了一种合金——海水用不锈钢冷形变
I. THE PRINCIPLE Positron annihilation methods have been widely used to study defects such as vacancies, voids and dislocations in metallic materials due to the extreme sensitivity of positrons to defects. This paper attempts to use this method to estimate an alloy - seawater with cold deformation of stainless steel