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首页> 外文期刊>High temperature materials and processes >Effect of Manganese Sulphide Size on the Precipitation of Tin Heterogeneous Nucleation in as-Cast Steel
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Effect of Manganese Sulphide Size on the Precipitation of Tin Heterogeneous Nucleation in as-Cast Steel

机译：硫化锰尺寸对铸钢中锡多相成核析出的影响

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摘要

Tramp elements in steels such as tin have been thought harmful because of the hot brittleness at grain boundaries and will be enriched in new steels because of difficulty of removal. It has been an important and difficult matter for metallurgist to use these elements. In the present paper, the as-cast steel containing high concentration of tin is prepared in laboratory and tin precipitates at the manganese sulphide inclusions have been found. A theoretical model is established to calculate the size of manganese sulphide inclusions acted as the heterogeneous nucleation site of tin precipitation. The results show that the inclusions with the smaller contact angle between tin precipitate is more advantageous to be the nucleus of tin heterogeneous nucleation. In this experiment, the manganese sulphide inclusions whose size is 2～4 μm in diameter can act as the nuclei of the nucleation of tin precipitation.
机译：由于晶界处的热脆性，人们认为诸如锡之类的钢中的流浪元素是有害的，并且由于难以去除，会在新钢中富集。使用这些元素对于冶金学家来说是重要而困难的事情。在本文中，在实验室中制备了含锡量高的铸态钢，并发现了硫化锰夹杂物中的锡沉淀。建立了理论模型以计算作为锡沉淀异质形核位点的硫化锰夹杂物的尺寸。结果表明，锡析出物之间接触角较小的夹杂物更有利于锡异质形核。在本实验中，直径为2〜4μm的硫化锰夹杂物可作为锡沉淀成核的核。

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  • 来源
    《High temperature materials and processes》 |2015年第3期|251-256|共6页
  • 作者

    Guilin Sun; Bo Song; Sufen Tao; Zeyun Cai;

  • 作者单位

    State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;

    State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;

    State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;

    State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;

  • 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);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    manganese sulphide; tin; heterogeneous nucleation; optimum size;

    机译：硫化锰锡;异质形核最佳尺寸;

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