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<p>MgO–C refractories are extensively employed in critical metallurgical equipment such as converters, electric arc furnaces and ladles, valued for their exceptional thermal shock resistance and slag corrosion resistance. However, the use of high-proportion scrap steel in low-carbon steelmaking processes accelerates the corrosive degradation of MgO–C refractories due to changes in slag basicity and viscosity. Enhancing the slag corrosion resistance of MgO–C refractories has thus become an urgent priority. The methods for evaluating the slag corrosion resistance of MgO–C refractories are systematically reviewed, the slag corrosion mechanisms are elucidated, and various strategies and recent advances for enhancing their slag corrosion resistance are summarized. The aim is to provide valuable insights and references for ongoing research in this field while outlining potential directions for future studies.</p>

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A review of slag corrosion resistance of MgO–C refractories: methods, mechanisms and improvements

  • 期刊论文

  • 发表日期：

    2026年1月25日

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  • Yu-Hang Zhang,
  • Tian-Bin Zhu,
  • Wei-Jie Guo,
  • Xu Zhao,
  • Ya-Wei Li,
  • Ning Liao,
  • Heng Wang,
  • Shao-Bai Sang,
  • Wen Yan

摘要

MgO–C refractories are extensively employed in critical metallurgical equipment such as converters, electric arc furnaces and ladles, valued for their exceptional thermal shock resistance and slag corrosion resistance. However, the use of high-proportion scrap steel in low-carbon steelmaking processes accelerates the corrosive degradation of MgO–C refractories due to changes in slag basicity and viscosity. Enhancing the slag corrosion resistance of MgO–C refractories has thus become an urgent priority. The methods for evaluating the slag corrosion resistance of MgO–C refractories are systematically reviewed, the slag corrosion mechanisms are elucidated, and various strategies and recent advances for enhancing their slag corrosion resistance are summarized. The aim is to provide valuable insights and references for ongoing research in this field while outlining potential directions for future studies.