1100 MPa级高强钢的低周疲劳行为
周红伟1,2, 白凤梅3,4(
), 杨磊1,2, 陈艳1,2, 方俊飞1,2, 张立强3, 衣海龙4, 何宜柱1,2
), 杨磊1,2, 陈艳1,2, 方俊飞1,2, 张立强3, 衣海龙4, 何宜柱1,2
Low-Cycle Fatigue Behavior of 1100 MPa Grade High-Strength Steel
ZHOU Hongwei1,2, BAI Fengmei3,4(), YANG Lei1,2, CHEN Yan1,2, FANG Junfei1,2, ZHANG Liqiang3, YI Hailong4, HE Yizhu1,2
), YANG Lei1,2, CHEN Yan1,2, FANG Junfei1,2, ZHANG Liqiang3, YI Hailong4, HE Yizhu1,2
图6. 高强钢在应变幅为0.4%和1.0%下疲劳断裂试样的TEM像
Fig.6. TEM images of fatigue fracture specimens
(a, b) lath structure under the strain amplitude of 0.4% at low (a) and high (b) magnifications
(c) low dislocation density, precipitate, PAGB, lath under the strain amplitude of 1.0%
(d) crack propagation path indicated by arrows under the strain amplitude of 1.0%
