综述：钢中亚稳奥氏体组织与疲劳性能关系
徐伟(),黄明浩,王金亮,沈春光,张天宇,王晨充
Review: Relations Between Metastable Austenite and Fatigue Behavior of Steels
XU Wei(),HUANG Minghao,WANG Jinliang,SHEN Chunguang,ZHANG Tianyu,WANG Chenchong

图3. 不同奥氏体形态试样的应力幅[50]

Fig.3. Stress amplitudes of samples with different austenite morphologies[50](a) evolution of stress amplitude with the number of cycles (Δε/2—total strain amplitude)(b, c) TEM micrographs of the samples under 320 ℃ (b) and 395 ℃ (c) isothermal quenching in the tested steel (αb is the bainitic ferrite; γb is the blocky retained austenite; γf is the film-like retained austenite)