超高强Q&P钢淬火温度对组织和性能的影响  

Influence of Quenching Temperature on Microstructure and Mechanical Properties of Q&P Super-high Strength Steel

作　　者：董辰[1] 陈雨来[1] 江海涛[1] 唐荻[1] 

机构地区：[1]北京科技大学高效轧制国家工程研究中心,北京100083

出　　处：《热加工工艺》2009年第12期121-123,152,共4页Hot Working Technology

基　　金：国家自然科学基金资助项目(50405015)

摘　　要：研究了淬火温度对Q&P钢微观组织和力学性能的影响,并通过经验公式及CCE平衡的计算,确定出理论的最佳淬火温度,并与实验结果相对比。结果表明,随淬火温度升高马氏体量降低、奥氏体量升高,使得钢的强度降低,塑性升高,在250℃时能取得较好的强塑积,与计算值较为吻合。The effects of quenching temperature on microstructure and mechanical properties of the Q＆P steel were researched. And through experience formula and calculating the balance of CCE, the best quenching temperature was determined, and compared with the experimental results. The results show that： with the increase of quenching temperature, martensite volume reduces, and austenitic volume increases, the strength of steel decreases, the plastic increases. An excellent strength and ductility quenched at 250℃ is obtained, which is identicalwith the calculated values.

关 键 词：Q&P钢 热处理 淬火温度 板条马氏体 残留奥氏体 

分 类 号：TG156.31[金属学及工艺—热处理]