卷取温度对500 MPa级热冲压桥壳用钢组织与力学性能的影响
惠亚军1,2(
), 刘锟1, 吴科敏3, 李秋寒1, 牛涛4, 武巧玲4
), 刘锟1, 吴科敏3, 李秋寒1, 牛涛4, 武巧玲4
Effect of Coiling Temperature on Microstructure and Mechanical Properties of 500 MPa Grade Hot Stamping Axle Housing Steel
HUI Yajun1,2(), LIU Kun1, WU Kemin3, LI Qiuhan1, NIU Tao4, WU Qiaoling4
), LIU Kun1, WU Kemin3, LI Qiuhan1, NIU Tao4, WU Qiaoling4
图2. 500 MPa级热冲压桥壳用钢在600 ℃卷取时的EBSD结果
(a) inverse pole figure (IPF)
(b) distribution of high and low angle grain boundaries (The red and black lines represent low and high angle boundaries with the misorientations between 2° and 15°, and more than 15°, respectively, the same below)
(c) distribution of grain size
(d) distribution of grain orientation
Fig.2. EBSD results of 500 MPa grade hot stamping axle housing steel when coiling at 600 ℃
