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Austenite Recrystallization and Controlled Rolling of Low Carbon Steels

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Abstract

The dynamic recrystallization and static recrystallization in a low carbon steel were investigated through single-pass and double-pass experiments. The results indicate that as the deformation temperature increases and the strain rate decreases, the shape of the stress-strain curve is changed from dynamic recovery shape to dynamic recrystallization shape. The austenite could not recrystallize within a few seconds after deformation at temperature below 900 °C. According to the change in microstructure during deformation, the controlled rolling of low carbon steel can be divided into four stages: dynamic recrystallization, dynamic recovery, strain-induced ferrite transformation, and rolling in two-phase region. According to the microstructure after deformation, the controlled rolling of low carbon steel can be divided into five regions: non-recrystallized austenite, partly-recrystallized austenite, fully-recrystallized austenite, austenite to ferrite transformation, and dual phase.

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Authors and Affiliations

  1. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, Liaoning, 110004, China

    Lin-xiu Du (Doctor, Professor), Zhong-ping Zhang, Guang-fu She, Xiang-hua Liu & Guo-dong Wang

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  1. Lin-xiu Du
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  2. Zhong-ping Zhang
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  3. Guang-fu She
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  4. Xiang-hua Liu
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  5. Guo-dong Wang
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Correspondence to Lin-xiu Du.

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Foundation Item: Item Sponsored by High Technology Development Program of China (2001AA332020) and National Natural Science Foundation of China (50271015)

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Du, Lx., Zhang, Zp., She, Gf. et al. Austenite Recrystallization and Controlled Rolling of Low Carbon Steels. J. Iron Steel Res. Int. 13, 31–35 (2006). https://doi.org/10.1016/S1006-706X(06)60057-5

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  • DOI: https://doi.org/10.1016/S1006-706X(06)60057-5

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