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Quantitative measurement of cementite dissociation in drawn pearlitic steel

机译：拉伸珠光体钢中渗碳体解离的定量测量

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摘要

Fractional dissociation of cementite was quantified as a function of strain by measuring the volume change of cementite in the pearlitic steel. The amount of carbon dissolved into the ferrite was estimated from the decrease of cementite volume, to correlate with the hardness in different strain level. The hardness showed linear relationship with the carbon dissolved into the ferrite matrix, which is believed to contribute in strengthening the drawn wire. Defects introduced from the deformation were believed to lower the energy barrier of cementite break-ups and to enhance the dissolution of carbon into ferrite.
机译：通过测量珠光体钢中渗碳体的体积变化，可将渗碳体的分数解离定量为应变的函数。从渗碳体体积的减少来估计溶解在铁素体中的碳量，以与不同应变水平下的硬度相关。硬度与溶解在铁素体基体中的碳呈线性关系，据信这有助于增强拉丝。据信，由变形引起的缺陷降低了渗碳体破碎的能垒，并增强了碳在铁素体中的溶解。

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  • 来源
    《Materials Science and Engineering》 |2011年第15期|p.4947-4952|共6页
  • 作者

    Jiwon Park; Sung-Dae Kim; Seung-Pyo Hong; Sung-Il Baik; Dong-Su Ko; Choong Yeol Lee; Duk-Lak Lee; Young-Woon Kim;

  • 作者单位

    Department of Materials Science and Engineering, Seoul National University, Cwanak-ro 599, Cwanak-gu, Seoul, Republic of Korea;

    Department of Materials Science and Engineering, Seoul National University, Cwanak-ro 599, Cwanak-gu, Seoul, Republic of Korea;

    Department of Materials Science and Engineering, Seoul National University, Cwanak-ro 599, Cwanak-gu, Seoul, Republic of Korea;

    Department of Materials Science and Engineering, Seoul National University, Cwanak-ro 599, Cwanak-gu, Seoul, Republic of Korea;

    Department of Materials Science and Engineering, Seoul National University, Cwanak-ro 599, Cwanak-gu, Seoul, Republic of Korea;

    POSCO, Wire Rod Research Group, 1 Coedong-dong, Nam-gu, Pohang, Republic of Korea;

    POSCO, Wire Rod Research Group, 1 Coedong-dong, Nam-gu, Pohang, Republic of Korea;

    Department of Materials Science and Engineering, Seoul National University, Cwanak-ro 599, Cwanak-gu, Seoul, Republic of Korea;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    transmission electron microscopy (TEM); drawing; pearlitic steels; hardness; high angle annular dark field (HAADF);

    机译：透射电子显微镜（TEM）;画画;珠光体钢;硬度;高角度环形暗场（HAADF）;

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