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首页> 外文期刊>Materials Science and Engineering >Microstructure evolution and enhanced mechanical properties of a Nb-Mo microalloyed medium Mn alloy fabricated by a novel cyclic quenching treatment
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Microstructure evolution and enhanced mechanical properties of a Nb-Mo microalloyed medium Mn alloy fabricated by a novel cyclic quenching treatment

机译：新型循环淬火处理制造的Nb-Mo微合金介质Mn合金的微观结构演化和增强力学性能

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摘要

Microstructure evolution and austenite stability of a Fe-6.0Mn-0.2C-l.0Al-0.05Nb-0.20Mo alloy fabricated by a novel cyclic quenching treatment were investigated. According to the experimental results, the influences of cyclic quenching treatment on retained austenite could be described as follows: (1) turning austenite grain morphology from a mixture of lamellar and equiaxed grain to the lamellar grain with the increase in cyclic quenching passes, (2) increasing austenite stability for the grain refinement (up to 0.21um) and higher C/Mn content in austenite. In addition, cyclic quenching treatment can increase the yield strength (YS), ultimate tensile strength (UTS) and total elongation (TE) of the experimental steel up to 172 MPa, 89 MPa and 8%, respectively. The average product of UTS and TE of the experimental steel after cyclic quenching treatment could reach up to 66.6 GPa-%. Moreover, the yield point elongation increased with the increase in cyclic quenching passes.
机译：研究了通过新型循环猝灭处理制造的Fe-6.0mN-0.2C-L.0Al-0.05NB-0.20mO合金的Fe-6.0mn-0.2C-L.0Al-0.05nb-0.20mO合金的微观结构演化和奥氏体稳定性。根据实验结果，循环猝灭处理对保留奥氏体的影响可以描述如下：（1）与循环猝灭通量的增加，将奥氏体晶粒形态与层状静脉和等​​轴的混合物转向层状晶粒，（2 ）在奥氏体中增加谷物细化（高达0.21um）和更高的C / Mn含量的奥氏体稳定性。此外，循环猝灭处理可以分别将实验钢的屈服强度（ys），最终拉伸强度（UTS）和总伸长率（TE）分别增加至多至172MPa，89MPa和8％。循环猝灭处理后，实验钢的UTS和TE的平均产物可达66.6GPa％。此外，屈服点伸长率随着循环淬火通行量的增加而增加。

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  • 来源
    《Materials Science and Engineering》 |2020年第21期|140076.1-140076.7|共7页
  • 作者

    Haijun Pan; Peng jiang; Yi Zhang; Wangping Wu; Zhizhi Wang; Qi Wang; Huaying Li;

  • 作者单位

    School of Mechanical Engineering and Rail Transit Changzhou University Changzhou 213164 China;

    School of Mechanical Engineering and Rail Transit Changzhou University Changzhou 213164 China;

    School of Mechanical Engineering and Rail Transit Changzhou University Changzhou 213164 China;

    School of Mechanical Engineering and Rail Transit Changzhou University Changzhou 213164 China;

    School of Mechanical Engineering and Rail Transit Changzhou University Changzhou 213164 China;

    School of Mechanical Engineering and Rail Transit Changzhou University Changzhou 213164 China;

    School of Materials Science and Engineering Taiyuan University of Science and Technology Taiyuan 030024 China;

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  • 正文语种 eng
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  • 关键词

    Microstructure evolution; Austenite stability; Cyclic quenching treatment; Grain refinement;

    机译：微观结构演变;奥氏体稳定;循环猝灭治疗;谷物细化;

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