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(
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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()
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图 5. 实验用钢不同厚度处的EBSD像及测量点-点取向差剖面距离与取向差的关系
Fig.5. EBSD images of the tested steel at 1/4 thickness (a) and 1/2 thickness (b) (The black lines and red lines denote the high angle grain boundaries (misorientation angle > 15°) and low angle grain boundaries (misorientation angle 2°-15°), respectively), and corresponding point-to-point misorientation profiles along line AB in Fig.5a (c) and line CD in Fig.5b (d)
