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首页> 外文期刊>JOM >Impact of Reversed Austenite on the Impact Toughness of the High-Strength Steel of Low Carbon Medium Manganese
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Impact of Reversed Austenite on the Impact Toughness of the High-Strength Steel of Low Carbon Medium Manganese

机译：逆转奥氏体对低碳介质锰高强度钢冲击韧性的影响

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摘要

We elucidate the relationship between the volume fraction of austenite and the Charpy impact toughness in a medium-Mn steel in terms of microstructural evolution with impact temperature. Different from retained austenite in the matrix after direct quenching, sub-micron lath-shaped morphology-reversed austenite in medium-Mn steel was produced by intercritical annealing. We found that reversed austenite steadily affected the fracture mode; only ductile fractures and dimples decreased with decreasing impact temperature. After the impact fracture test, the content of reversed austenite in the matrix increased slightly with a decreasing impact temperature due to the stability of the austenite grains caused by recrystallization of α ′ martensite. Reversed austenite slightly decreased during the impact process with a decreasing impact temperature.
机译：在微观结构进化方面，我们阐明奥氏体体积分数和夏乳型在中Mn钢中的关系的关系。 在直接淬火后与基质中的保留奥氏体不同，通过跨临界退火产生中-MN钢中的亚微米物质形态逆转奥氏体。 我们发现逆转奥氏体稳定地影响了骨折模式; 只有延性骨折和凹槽随着抗冲击温度的降低而降低。 在冲击断裂试验后，由于α'马氏体重结晶引起的奥氏体颗粒的稳定性，基质中反转奥氏体的含量略微增加，其抗冲击性降低。 在冲击过程中逆转奥氏体略微降低，抗冲击温度降低。

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  • 来源
    《JOM》 |2018年第5期|共8页
  • 作者

    Guanqiao Su; Xiuhua Gao; Dazheng Zhang; Linxiu Du; Jun Hu; Zhenguang Liu;

  • 作者单位

    The State Key Laboratory of Rolling and Automation Northeastern University;

    The State Key Laboratory of Rolling and Automation Northeastern University;

    The State Key Laboratory of Rolling and Automation Northeastern University;

    The State Key Laboratory of Rolling and Automation Northeastern University;

    The State Key Laboratory of Rolling and Automation Northeastern University;

    School of Materials Science and Engineering Jiangsu University of Science and Technology;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 有色金属冶炼;金属学与金属工艺;
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