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1 纳米孪晶强化304不锈钢(304 SS)的微观结构

Fig.1 Cross-sectional SEM image of nanotwin (NT)-strengthened 304 stainless steel (304 SS) comprising NT bundles embedded in micrometer-sized grain matrix (a), TEM images of static recrystallized (SRX) grains with few dislocations (b) and nanotwins with numerous dislocations (c) (Insets in Figs.1b and c are the selected area electron diffraction (SAED) patterns)