为满足汽车工业轻量化发展要求，以Q&P（quenching & partitioning）工艺为基础的先进高强度钢受到了广泛关注，为使其在普通热连轧生产线上实现工业化并广泛应用，本文对Q&P理念在热轧工艺中的应用进行了基础研究。结果表明在传统热处理Q&P工艺中引入热变形处理后，组织细化显著，并获得了一定量的残余奥氏体。实验钢在保持较高强度的同时获得了较大的强塑积，结合目前国内热连轧生产线以超快冷系统为核心的新一代控轧控冷（TMCP）技术的应用，确定了在热连轧生产线生产热轧Q&P钢（DQ（direct quenching）&P钢）的可行性。

In order to satisfy the requirements of lightweight in the automotive industry，the development of advanced high strength steel obtained using the quenching and partitioning （Q&P）process has been paid extensive attentions. In the present work，the application of Q&P concept during hot rolling was investigated for wide use of Q&P process on the conventional hot rolling production line. It was shown that introducing thermo-mechanical treatment during the conventional Q&P process was favorable for significantly refining the microstructure and obtaining a certain amount of retained austenite，and the experimental steel possessed the higher product of strength and ductility under the condition of maintaining higher strength. The feasibility of producing the hot rolled Q&P steel（DQ（direct quenching）&P steel）was determined on the hot rolling production line by employing the new-generation thermo mechanical control process （TMCP）with ultra fast cooling at the core.