轧制工艺对高强度车轮AG650LW轮辋钢的组织和性能的影响  

Effect of Rolling Process on Structure and Properties of Wheel Rim Steel AG650LW for High Strength Wheel

作　　者：万国喜[1] 刘艳红[1] 刘鹏[1] 何晓波[1] Wan Guoxi;Liu Yanhong;Liu Peng;He Xiaobo(Technology Center,Anyang Iron&Steel Group Co.,Ltd.,Anyang 455004)

机构地区：[1]安阳钢铁集团有限责任公司技术中心,安阳455004

出　　处：《特殊钢》2023年第1期83-88,共6页Special Steel

摘　　要：通过Gleeble-3800热模拟试验机对AG650LW钢进行动态CCT曲线测定和轧制工艺模拟试验,得出满足650 MPa轮辋钢性能要求的组织为由铁素体+贝氏体+少量的珠光体,其终轧温度840~880℃,卷取温度480℃,轧后层流冷却速率≥10℃/s,硬度≥220HV。试验钢卷的综合开裂率4.3‰,满足了用户的加工期望要求。The dynamic CCT curve measurement and rolling process simulation test of AG650 LW steel are carried out by gleeble-3800. It is obtained that the structure to satisfy 650 MPa rim steel is ferrite+bainite+a small amount of pearlite, with end rolling temperature at 840~880 ℃and coiling temperature at 480 ℃, laminar flow cooling rate after rolling ≥10 ℃/s, and hardness value≥220 HV. The comprehensive crack ratio of the test coil is 4.3‰, which meets the requirement of the user.

关 键 词：650 MPa AG650LW钢 车轮轮辋 热模拟 冷却速率 卷取温度 开裂率 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG335[金属学及工艺—金属材料]