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7. 500 MPa级热冲压桥壳用钢在不同冷却速率下的微观组织
Fig.7. Microstructures of 500 MPa grade hot stamping axle housing steel at cooling rates of 0.1 ℃/s (a), 1 ℃/s (b), 3 ℃/s (c), 5 ℃/s (d), 8 ℃/s (e), 15 ℃/s (f), 20 ℃/s (g) and 30 ℃/s (h) (M—martensite, LB—lath bainite)
