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对 ３１６Ｌ和 ３１６ＬＮ不锈钢进行了单轴拉压及多轴非比例加载低周疲劳实验研究，分析了固溶的氮原子对单轴及多轴非比例加载低周疲劳特性及其微结构的影响，结果表明、固溶的氮原子增大了不锈钢的单轴循环软化程度及非比例循环附加强化程度．延长了不锈钢的单轴拉压低周疲劳寿命，但却缩短了不锈钢的多轴非比例加载低周疲劳寿命，固溶的氮原子对单轴及多轴低周疲劳高密度位错结构的形成具有明显的抑制作用.利用Ｍｏｓｓｂａｕｅｒ谱方法．间接地证实了至今尚未得到实验证实的ＩＳ结合体的假设
Uniaxial tension compression and multi-axial non-proportional loading low cycle fatigue tests on 316L and 316LN stainless steel were carried out. The effects of solid solution nitrogen on low cycle fatigue characteristics and microstructures under uniaxial and multi-axial non-proportional loading were analyzed. The results show that the solution of nitrogen atoms increases the degree of uniaxial softening of stainless steel and the degree of non-proportional additional cycles. Prolongs the low cycle fatigue life of stainless steel under uniaxial tension and compression, but shortens the low-cycle fatigue life of stainless steel under multi-axial and non-proportional loading. The formation of uniaxial and multiaxial low cycle fatigue high density dislocation structures by the solid solution nitrogen atoms has Obvious inhibition.Using Mossbauer spectral method. Indirectly confirms the hypothesis that so far has not been experimentally confirmed IS binding