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Dynamic Transformation and Retransformation During the Simulated Plate Rolling of an X70 Pipeline Steel

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Proceedings of the 3rd Pan American Materials Congress

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

The controlled rolling of pipeline steels involves pancaking the austenite and then subjecting it to accelerated cooling. However, the formation of ferrite during rolling decreases the amount of austenite available for microstructure control. Here the formation of ferrite during rolling is simulated using a five-pass rolling schedule applied by means of torsion testing. The first and last pass temperatures were 920 and 860 °C with 15° of cooling between passes. All of the rolling was carried out above the Ae3 temperature of 845 °C that applies to this steel. Interpass times of 10 and 30 s were employed, which corresponded to cooling rates of 1.5 and 0.5 °C/s, respectively. Samples were quenched before and after the first, third, and fifth passes in order to determine the amount of dynamic ferrite produced in a given pass. The amounts of dynamic ferrite formed and retained increased with pass number. The amounts of ferrite that retransformed increased with pass number. The simulations indicate that ferrite is unavoidably produced during plate rolling and that the microstructures present at the initiation of accelerated cooling do not consist solely of austenite.

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Acknowledgements

The authors acknowledge with gratitude funding received from the Brazilian National Council for Scientific and Technological Development (SFR), the McGill Engineering Doctoral Award (MEDA) program (CAJr), and the Natural Sciences and Engineering Research Council of Canada (JJJ).

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Authors and Affiliations

  1. Department of Materials Engineering, McGill University, 3610 University Street, Montreal, QC, H3A 0C5, Canada

    Samuel F. Rodrigues, Clodualdo Aranas Jr & John J. Jonas

  2. Federal Institute of Education, Science and Technology of Maranhao, Av. Marechal Castelo Branco 789, São Francisco, São Luís, MA, 65076-091, Brazil

    Samuel F. Rodrigues

  3. Dynamic Systems Inc., 323 NY 355, Poestenkill, NY, 12140, USA

    Fulvio Siciliano

Authors
  1. Samuel F. Rodrigues
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  2. Clodualdo Aranas Jr
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  3. Fulvio Siciliano
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  4. John J. Jonas
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Corresponding author

Correspondence to Samuel F. Rodrigues .

Editor information

Editors and Affiliations

  1. Dept. of Nanoengineering, MC 0448, University of California-San Diego Dept. of Nanoengineering, MC 0448, LA JOLLA, California, USA

    Marc André Meyers

  2. ESFM-IPN , Mexico City, Mexico

    Hector Alfredo Calderon Benavides

  3. UTN-National University of Technology , Buenos Aires, Argentina

    Sonia P Brühl

  4. Universidad de Antioquia , Medellín, Colombia

    Henry A Colorado

  5. Pratt & Whitney Canada , Longueuil, Canada

    Elvi Dalgaard

  6. Military Institute of Engineering , Rio de Janerio, Brazil

    Carlos Nelson Elias

  7. Universidade Federal de Minas Gerais , Belo Horizonte, Brazil

    Roberto B Figueiredo

  8. Ternium Mexico , Nuevo León, Mexico

    Omar Garcia-Rincon

  9. Division of Materials Sci & Engg, Hanyang University Division of Materials Sci & Engg, Seoul, Korea (Republic of)

    Megumi Kawasaki

  10. Dept. Engineering & the Environment, University of Southampton Dept. Engineering & the Environment, Southampton, United Kingdom

    Terence G. Langdon

  11. University of Concepción , Concepción, Chile

    R.V. Mangalaraja

  12. Universidad Nacional de Ingeniería , Lima, Peru

    Mery Cecilia Gomez Marroquin

  13. Federal University of Rio de Janeiro , Rio de Janeiro, Brazil

    Adriana da Cunha Rocha

  14. Dept Chemical Engg & Sci, University of California, Irvine Dept Chemical Engg & Sci, Irvine, California, USA

    Julie M Schoenung

  15. Universidade Federal Fluminense , Niterói, Brazil

    Andre Costa e Silva

  16. Mechanical Engineering, University of Waterloo Mechanical Engineering, WATERLOO, Ontario, Canada

    Mary Wells

  17. ETH Zurich , Zürich, Switzerland

    Wen Yang

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Rodrigues, S.F., Aranas, C., Siciliano, F., Jonas, J.J. (2017). Dynamic Transformation and Retransformation During the Simulated Plate Rolling of an X70 Pipeline Steel. In: Meyers, M., et al. Proceedings of the 3rd Pan American Materials Congress. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-52132-9_25

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