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 2 纳米孪晶强化304 SS和粗晶304 SS的应变疲劳性能

Fig.2 Cyclic stress response curves (a) and corresponding cyclic softening ratio (R) (b) of NT-strengthened 304 SS and coarse grained (CG) 304 SS under constant plastic strain amplitude (Δε pl / 2) control (Arrows in Fig.2a denote the sample without failure, N f denotes the fatigue-to-failure life)