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
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

图6. 500 MPa级热冲压桥壳用钢的连续冷却转变(CCT)曲线

Fig.6. Continuous cooling transition (CCT) curve of 500 MPa grade hot stamping axle housing steel (Ac3—temperature of all ferrite transform into austenite during heating, Ms—martensite transformation start temperature)