采用光学显微镜、X射线衍射仪和拉伸试验机等研究了轧后冷却工艺对热轧TRIP钢组织和性能的影响。结果表明：弛豫时间对热轧TRIP钢组织影响较大，随弛豫时间增加，带状组织等级越来越高，铁素体组织也略显粗大；模拟卷取制备的热轧TRIP钢组织中残余奥氏体含量和残余奥氏体中碳含量均较高；贝氏体区停留时间延长，则屈服强度和伸长率增大，但抗拉强度下降。
The effects of cooling process after rolling on the microstructure and mechanical properties of hot rolled transformation-induced plasticity （TRIP） steels were investigated by means of optical microscopy, X-ray diffractometer, and tensile test machine. The results show that relaxation time had greater impact on the microstructure of hot rolled TRIP steels, the banded structure grade increased with relaxation time, at the same time, ferrite grain grew slightly. The hot rolled coiled TRIP steels had more retained austenite, as well as carbon content in retained austenite. The yield strength and elongation increased, tensile strength decreased with prolongating residence time in Bainite zone.
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