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High-temperature deformation properties of austenitic Fe-Mn alloys

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Abstract

The influence of the Mn content on the hot deformation properties of austenitic binary Fe-Mn alloys containing 1 to 20 mass pct Mn has been investigated for the first time. The influence of the Mn content on the constitutive equations was determined for the temperature range of 950 °C to 1250 °C and the strain rate range of 0.1 to 2 s−1. The activation energy for hot working increased with increasing Mn content, and dynamic recrystallization was observed for all the Fe-Mn binary alloys. The Mn was found to delay dynamic recrystallization. An increase in the Mn content resulted in an increase of both the peak stress σ p and the corresponding peak strain ε p , thus revealing the pronounced influence of Mn on the hot deformation process.

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Authors and Affiliations

  1. Laboratory for Iron and Steelmaking, Department of Metallurgy and Materials Science, Ghent University, B-9052, Ghent, Belgium

    N. Cabañas (Graduate Student) & J. Penning (Professor)

  2. Arcelor Group, OCAS NV, B-9060, Zelzate, Belgium

    N. Akdut

  3. Graduate Institute of Ferrous Technology, POSTECH, Pohang, 790-784, Kyung Buk, Korea

    B. C. De Cooman (Professor)

Authors
  1. N. Cabañas
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  2. J. Penning
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  3. N. Akdut
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  4. B. C. De Cooman
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Cabañas, N., Penning, J., Akdut, N. et al. High-temperature deformation properties of austenitic Fe-Mn alloys. Metall Mater Trans A 37, 3305–3315 (2006). https://doi.org/10.1007/BF02586165

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  • DOI: https://doi.org/10.1007/BF02586165

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