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首页> 外文期刊>Materials Science and Engineering >In situ neutron diffraction and crystal plasticity analysis on Q&P1180 steel during plastic deformation
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In situ neutron diffraction and crystal plasticity analysis on Q&P1180 steel during plastic deformation

机译：在塑性变形期间Q＆P1180钢的原位中子衍射和晶体塑性分析

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摘要

Q&P1180 is a typical third generation of advanced high strength steel. In this paper, the microstructure evolution of the Q&P1180 steel during uniaxial tension is investigated comprehensively by using in situ neutron diffraction technique, electron backscatter diffraction (EBSD), scanning electron microscope (SEM) and the elastic-visco-plastic self-consistent with phase transformation (EVPSC-PT) model. Tempered martensite (TM) is determined as the matrix based on SEM and EBSD analysis. Tiny blocky retained austenite (RA) islands are distributed in the matrix, and transformed into martensite during deformation. Effects of phase transformation on the stress-strain response, lattice strains, diffraction intensities and texture evolution of the Q&P1180 are discussed based on experiments and the EVPSC-PT model. The progressive phase transformation from austenite to martensite is orientation-dependent, and the γ{200} orientation has the lowest stability, followed by γ{220} and γ{311} orientations. The flow stress of each phase with straining shows that the strength of RA in Q&P1180 is higher than that of TM, due to its high carbon content.
机译：Q＆P1180是一种典型的第三代高强度钢。本文通过使用原位中子衍射技术，电子反向散射衍射（EBSD），扫描电子显微镜（SEM）和弹性 - 粘塑料自洽相相，全面研究了Q＆P1180钢的微观结构演化转型（EVPSC-PT）模型。钢化马氏体（TM）被确定为基于SEM和EBSD分析的矩阵。微小块状保留奥氏体（Ra）岛分布在基质中，并在变形期间转变为马氏体。基于实验和EVPSC-PT模型讨论了Q＆P1180对应力 - 应变响应，晶格株，衍射强度和纹理演化的影响。从奥氏体到马氏体的渐进相变为取决于取决词，γ{200}取向具有最低的稳定性，其次是γ{220}和γ{311}方向。由于其高碳含量，每个相的每个相的流量胁迫表明Q＆P1180中的Ra强度高于Tm的强度。

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  • 来源
    《Materials Science and Engineering》 |2021年第20期|140425.1-140425.15|共15页
  • 作者

    Hao Yang; Huamiao Wang; Zhaolong Yang; Yalin Huang; Dayong Li; Yinghong Peng; Peidong Wu;

  • 作者单位

    State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong University Shanghai 200240 China;

    State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong University Shanghai 200240 China;

    Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics Mianyang 621999 China;

    Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics Mianyang 621999 China;

    State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong University Shanghai 200240 China Materials Genome Initiative Center Shanghai Jiao Tong University 200240 China;

    State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong University Shanghai 200240 China;

    Department of Mechanical Engineering McMaster University Hamilton Ontario L8S 4G7 Canada;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Quenching and partitioning steels; Neutron diffraction; Crystal plasticity; Phase transformation; Texture; Lattice strain;

    机译：淬火和分隔钢;中子衍射;水晶塑性;相变;质地;格子拉紧;

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