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Effect of hot rolling on the microstructure and impact absorbed energy of the strip steel by CSP

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Abstract

The microstructures and impact absorbed energies at various temperatures were investigated for steel strips hot rolled to thickness reductions of 95.5%, 96.0%, 96.5%, 97.0%, and 97.5%. Results indicate that grain refinement can be realized with an increase in hot rolling reduction. Besides, finer precipitates can be achieved with an increase in hot rolling reduction from 95.5% to 97.0%. The impact absorbed energy decreases with a decrease in testing temperature for steel strips hot rolled to 95.5%, 96.0%, and 96.5% reductions in thickness. However, in the case of steel strips hot rolled to 97.0% and 97.5% reductions in thickness, the impact absorbed energy remained almost constant with a decrease in testing temperature.

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Authors and Affiliations

  1. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, China

    Jing-jing Yang, Run Wu, Zhi-dong Xiang & Meng-xia Tang

  2. Key Laboratory for Ferrous Metallurgy and Resources Utilization of the Ministry of Education, Wuhan University of Science and Technology, Wuhan, 430081, China

    Jing-jing Yang & Run Wu

  3. Research and Design Institute of Wuhan Iron and Steel Corporation, Wuhan, 430080, China

    Wen Liang

Authors
  1. Jing-jing Yang
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  2. Run Wu
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  3. Wen Liang
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  4. Zhi-dong Xiang
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  5. Meng-xia Tang
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Correspondence to Run Wu.

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Yang, Jj., Wu, R., Liang, W. et al. Effect of hot rolling on the microstructure and impact absorbed energy of the strip steel by CSP. Int J Miner Metall Mater 21, 674–681 (2014). https://doi.org/10.1007/s12613-014-0957-y

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  • DOI: https://doi.org/10.1007/s12613-014-0957-y

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