摘要
以钒铌微合金控冷成形制造的高强度钢筋为对象,通过热模拟实验研究了控冷温度对其组织与性能的影响。结果表明,控冷温度为720-740℃时,钢筋的微观组织为珠光体、块状细小铁素体和少量细小贝氏体。钢筋的维氏硬度为208-213 HV,抗拉强度为700-720 MPa。
The effect of control cooling temperature on the microstructure and properties of Nb-V microalloyed high strength steel were studied. The results show that the microstructure of the steel are pearlite, tiny ferrite and a few tiny bainite when the control cooling temperature are 720-740 ℃. And the Vickers hardness and tensile strength of the steel are 208-213 HV and 700-720 MPa, respectively.
出处
《铸造技术》
CAS
北大核心
2014年第10期2371-2373,共3页
Foundry Technology
关键词
高强度钢筋
控冷温度
析出相
high strength steel bar
control cooling temperature
precipitated phase
