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首页> 外文期刊>ISIJ international >Effect of Phosphorus on Hall-Petch Coefficient in Ferritic Steel
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Effect of Phosphorus on Hall-Petch Coefficient in Ferritic Steel

机译：磷对铁素体钢霍尔-浸蚀系数的影响

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摘要

The effect of phosphorus on the Hall-Petch coefficient (k_γ) of polycrystalline ferritic steel was investigated by using interstitial free steel (IF steel) and an ultralow carbon (60 ppm C) steel containing different amount of phosphorus. The k_γ of IF steel was around 100 MPa·μm~(1/2) regardless of the amount of phosphorus. On the other hand, the k_γ of ultralow carbon steel containing phosphorus was higher than that of the IF steels, but significantly lower than that of the ultralow carbon steel without phosphorus. The analysis by Auger electron spectroscopy revealed that carbon segregates at ferrite grain boundary, and the amount of segregated carbon tended to be reduced by the addition of phosphorus. From these results, it can be concluded that phosphorus does not directly influence the k_γ of polycrystalline ferritic iron, but indirectly decreases the k_γ by reducing the amount of carbon segregated at grain boundary.
机译：通过使用间隙自由钢（IF钢）和含不同磷量的超低碳（60 ppm C）钢，研究了磷对多晶铁素体钢霍尔-普奇系数（k_γ）的影响。 IF钢的k_γ约为100 MPa·μm〜（1/2），与磷的含量无关。另一方面，含磷的超低碳钢的k_γ高于IF钢的k_γ，但显着低于不含磷的超低碳钢的k_γ。通过俄歇电子能谱分析发现，碳偏析在铁素体晶界，并且通过添加磷趋于减少偏析的碳量。从这些结果可以得出结论，磷不直接影响多晶铁素体铁的k_γ，而是通过减少在晶界偏析的碳含量间接降低k_γ。

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  • 来源
    《ISIJ international》 |2011年第7期|p.1169-1173|共5页
  • 作者

    Nobuo NAKADA; Masaru FUJIHARA; Toshihiro TSUCHIYAMA; Setsuo TAKAKI;

  • 作者单位

    Department of Materials Science and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan;

    Nisshin Steel Co., Ltd., 11-1 Showa-cho, Kure, Hiroshima, 737-8520 Japan;

    Department of Materials Science and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan;

    Department of Materials Science and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    hall-petch coefficient; ferritic steel; phosphorus; carbon; grain boundary segregation;

    机译：霍尔获取系数铁素体钢磷;碳;晶界偏析;

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