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Austenite grain growth behavior of X80 pipeline steel in heating process

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Abstract

Through changing soaking temperature and soaking time, austenite grain growth behavior of X80 pipeline steel under different heating conditions was studied. Relationships of average grain size to soaking temperature and time were obtained respectively. The results show that the prior austenite grains grow with the increase of soaking temperature and time. When soaking temperature is lower than 1180 °C, austenite grain size and growth rate are small; when it higher than 1200 °C, austenite grains grow rapidly and abnormal grain growth appears. For soaking at 1180 °C. austenite grain growth rate is initially high and then decreases when soaking time exceeds 1 h.

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Authors and Affiliations

  1. Faculty of Materials and Metallurgy Engineering, Kunming University of Science and Technology, 650093, Kunming, Yunnan, China

    Lin-na Duan (Master), Ji-man Wang & Jian-chun Cao

  2. Institute for Structural Materials, Central Iron and Steel Research Institute, 100081, Beijing, China

    Lin-na Duan (Master), Ji-man Wang, Qing-you Liu & Xin-jun Sun

Authors
  1. Lin-na Duan
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  2. Ji-man Wang
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  3. Qing-you Liu
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  4. Xin-jun Sun
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  5. Jian-chun Cao
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Corresponding author

Correspondence to Lin-na Duan.

Additional information

Foundation Item: Item Sponsored by National Key Technology Research and Development Program of China (2006BAE03A15); Natural Science Foundation of Yunnan Province of China (2006E0017Q)

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Duan, Ln., Wang, Jm., Liu, Qy. et al. Austenite grain growth behavior of X80 pipeline steel in heating process. J. Iron Steel Res. Int. 17, 62–66 (2010). https://doi.org/10.1016/S1006-706X(10)60074-X

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  • DOI: https://doi.org/10.1016/S1006-706X(10)60074-X

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