纳米孪晶强化304奥氏体不锈钢的应变控制疲劳行为

潘庆松, 崔方, 陶乃镕, 卢磊

Strain-Controlled Fatigue Behavior of Nanotwin- Strengthened 304 Austenitic Stainless Steel

PAN Qingsong, CUI Fang, TAO Nairong, LU Lei

图5 纳米孪晶强化304 SS在低塑性应变幅(0.05%)疲劳时的微观结构特征

Fig.5 Bright-field TEM images of typical NT grain with intact twins (a) and detwinned structures in the vicinity of SRX grains in NT strengthened 304 SS fatigued at Δε pl / 2 of 0.05% (b), and TEM image of rectangle area in Fig.5b showing twin boundaries with steps and dislocation tangles in the twin interior (c)