690 MPa级高强韧低碳微合金建筑结构钢设计及性能
朱雯婷1, 崔君军1, 陈振业1,2, 冯阳1, 赵阳3, 陈礼清1()
Design and Performance of 690 MPa Grade Low-Carbon Microalloyed Construction Structural Steel with High Strength and Toughness
ZHU Wenting1, CUI Junjun1, CHEN Zhenye1,2, FENG Yang1, ZHAO Yang3, CHEN Liqing1()

图 9. 实验用钢不同厚度处的高倍SEM像和C元素分布图
(a, b) 1/8 thickness (c, d) 1/4 thickness (e, f) 1/2 thickness

Fig.9. High magnified SEM images (a, c, e) and distributions of carbon (b, d, f) in the tested steel at different thicknesses