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Volume 17 Issue 5
Oct.  2010
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Zhi-qiang Cao, Yan-ping Bao, Zheng-hai Xia, Deng Luo, Ai-min Guo, and Kai-ming Wu, Toughening mechanisms of a high-strength acicular ferrite steel heavy plate, Int. J. Miner. Metall. Mater., 17(2010), No. 5, pp. 567-572. https://doi.org/10.1007/s12613-010-0358-9
Cite this article as:
Zhi-qiang Cao, Yan-ping Bao, Zheng-hai Xia, Deng Luo, Ai-min Guo, and Kai-ming Wu, Toughening mechanisms of a high-strength acicular ferrite steel heavy plate, Int. J. Miner. Metall. Mater., 17(2010), No. 5, pp. 567-572. https://doi.org/10.1007/s12613-010-0358-9
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Toughening mechanisms of a high-strength acicular ferrite steel heavy plate

  • 通讯作者:

    Kai-ming Wu    E-mail: wukaiming@wust.edu.cn

  • An ultra-low carbon acicular ferrite steel heavy plate was obtained with an advanced thermo-mechanical control process-relaxed precipitation controlled transformation (TMCP-RPC) at Xiangtan Steel, Valin Group. The heavy plate has a tensile strength of approximately 600 MPa with a lower yield ratio. The impact toughness of the heavy plate achieves 280 J at -40℃. The fine-grained mixed microstructures of the heavy plate mainly consist of acicular ferrite, granular bainite, and polygonal ferrite. The high strength and excellent toughness of the heavy plate are attributed to the formation of acicular ferrite microstructure. The prevention of blocks of martensite/retained austenite (M/A) and the higher cleanness are also responsible for the superior toughness.
  • Toughening mechanisms of a high-strength acicular ferrite steel heavy plate

    + Author Affiliations
    • An ultra-low carbon acicular ferrite steel heavy plate was obtained with an advanced thermo-mechanical control process-relaxed precipitation controlled transformation (TMCP-RPC) at Xiangtan Steel, Valin Group. The heavy plate has a tensile strength of approximately 600 MPa with a lower yield ratio. The impact toughness of the heavy plate achieves 280 J at -40℃. The fine-grained mixed microstructures of the heavy plate mainly consist of acicular ferrite, granular bainite, and polygonal ferrite. The high strength and excellent toughness of the heavy plate are attributed to the formation of acicular ferrite microstructure. The prevention of blocks of martensite/retained austenite (M/A) and the higher cleanness are also responsible for the superior toughness.
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