Quenched and partitioned(Q&P)steel has the characteristics of low cost,good properties,and relatively simple process,and becomes a key research object of the third generation of advanced high strength steel(AHSS).C,Si and Mn elements are the basic alloying elements of the Q&P steel,which have a significant impact on the microstructure and properties of the Q&P steel.Nowadays,most of the research is based on C-Si-Mn system partitioned steel.The production process of the Q&P steel is introduced,the effect of alloy elements on the microstructure and properties of the Q&P steel is clarified,as well as the relationship between the microstructure and mechanical properties of the Q&P steel.The focus is on the influence of process parameters on microstructure and properties of the Q&P steel,and prospects for the development of the Q&P steel are made.
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