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首页> 外文期刊>Materials Science and Engineering >Effects of N and Cu on the precipitation and the creep life of 316 L austenitic stainless steel at 650 ℃
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Effects of N and Cu on the precipitation and the creep life of 316 L austenitic stainless steel at 650 ℃

机译：氮和铜对650℃316 L奥氏体不锈钢的析出和蠕变寿命的影响

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摘要

N and Cu were incorporated in 316L austenitic stainless steel in order to improve the creep life at 650 ℃ and 700 ℃ with a stress range of 100-250 MPa. An increased amount of N in solid solution strengthened the matrix and suppressed the coarsening of M_(23)C_6 precipitates, which improved the creep life. Low stresses allowed Cu-added alloys to rupture after the precipitation of the Cu-rich phase, which strengthens the matrix. Therefore, the addition of Cu enhanced the creep life only under low stresses while the positive effect of Cu was inconspicuous under high stresses.
机译：316L奥氏体不锈钢中掺入了N和Cu，以改善在650℃和700℃应力范围为100-250 MPa时的蠕变寿命。固溶态氮含量的增加增强了基体的强度，抑制了M_（23）C_6沉淀的粗化，从而提高了蠕变寿命。低应力使含铜合金在富铜相沉淀后破裂，从而增强了基体。因此，仅在低应力下添加铜才能提高蠕变寿命，而在高应力下铜的积极作用并不明显。

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  • 来源
    《Materials Science and Engineering》 |2016年第26期|198-203|共6页
  • 作者

    Bo Cai; Jee-Hyun Kang; Chang-Wan Hong; Sung-Joon Kim;

  • 作者单位

    Institute of Ferrous Technology (GIFT), Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea;

    Institute of Ferrous Technology (GIFT), Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea;

    Institute of Ferrous Technology (GIFT), Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea;

    Institute of Ferrous Technology (GIFT), Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea;

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

    Austenite; Steel; Creep; Precipitation;

    机译：奥氏体钢;蠕变;沉淀;

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