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首页> 外文期刊>Materials Science and Engineering >Characterization and modeling of mechanical behavior of quenching and partitioning steels
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Characterization and modeling of mechanical behavior of quenching and partitioning steels

机译：淬火和分区钢的力学性能表征和建模

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摘要

Q&P annealing was applied to cold rolled carbon-manganese steel with Si. Q&P cycles with different partitioning temperature and time were simulated and the evolution of microstructure and mechanical properties was investigated. All the microstructures were composed of three constituents: partitioned martensite, laths of retained austenite and MA islands. Fine microstructure characterization confirmed that C diffusion plays an important role for the stabilization of retained austenite at room temperature and further TRIP effect during mechanical loading. Good compromise between yield strength (～1200 MPa) and uniform elongation (～11%) was found in the case of 400 ℃ partitioning for 300 s due to the enhanced mechanical stability of retained austenite. Evolution of microstructure and mechanical properties was discussed and some mechanisms were proposed to explain the observations. Mechanical model for the prediction of stress-strain curves of Q&P steels was proposed, based on the obtained experimental data. Accurate prediction of stress-strain curves using model was achieved.
机译：将Q＆P退火应用于含Si的冷轧碳锰钢。模拟了不同分配温度和时间的Q＆P循环，研究了组织和力学性能的演变。所有的微观结构都由三个成分组成：马氏体分隔，残余奥氏体板条和MA岛。精细的微观结构表征证实，C扩散对于室温下残留奥氏体的稳定化以及机械载荷过程中的进一步TRIP效应起着重要作用。在400℃分配300 s的情况下，由于残余奥氏体的机械稳定性增强，在屈服强度（〜1200 MPa）和均匀伸长率（〜11％）之间取得了良好的折衷。讨论了微观结构和力学性能的演变，并提出了一些机制来解释这些现象。基于获得的实验数据，提出了预测Q＆P钢应力-应变曲线的力学模型。使用模型可以准确预测应力-应变曲线。

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  • 来源
    《Materials Science and Engineering》 |2015年第3期|293-300|共8页
  • 作者

    A. Arlazarov; O. Bouaziz; J.P. Masse; F. Kegel;

  • 作者单位

    ArcelorMittal Global Research and Development, Voie Romaine-BP30320, 57283 Maizieres-les-Metz Cedex, France ,Laboratoire d'Etude des Microstructures et de Mecanique des Materiaux (LEM3), CNRS UMR 7239, Universite de Lorraine, 57012 Metz Cedex, France;

    ArcelorMittal Global Research and Development, Voie Romaine-BP30320, 57283 Maizieres-les-Metz Cedex, France ,Laboratoire d'Etude des Microstructures et de Mecanique des Materiaux (LEM3), CNRS UMR 7239, Universite de Lorraine, 57012 Metz Cedex, France;

    ArcelorMittal Global Research and Development, Voie Romaine-BP30320, 57283 Maizieres-les-Metz Cedex, France;

    ArcelorMittal Global Research and Development, Voie Romaine-BP30320, 57283 Maizieres-les-Metz Cedex, France;

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  • 正文语种 eng
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  • 关键词

    Quenching and Partitioning; Mechanical properties; Microstructure; TRIP; Modeling;

    机译：淬火和分区;机械性能微观结构旅行;造型;

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