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Transformation-induced plasticity in Fe-Cr-V-C

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Abstract

On the basis of the Fe84.3C4.6Cr4.3Mo4.6V2.2 high-speed tool steel, manufactured under relatively high cooling rates and highly pure conditions, a further improvement of the mechanical characteristics by slight modification of the alloy composition was attempted. For this, the alloy Fe88.9Cr4.3V2.2C4.6 was generated by elimination of Mo. By applying special preparation conditions, a microstructure composed of martensite, retained austenite, and a fine network of special carbides was obtained already in the as-cast state. This material exhibits extremely high compression strength of over 5000 MPa combined with large compression strain of more than 25% due to deformation-induced martensite formation. With this alloy a new composition of transformation-induced plasticity-assisted steels was found, which shows an extreme mechanical loading capacity.

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Authors and Affiliations

  1. Institute for Complex Materials, IFW Dresden, D-01171, Dresden, Germany

    Uta Kühn, Jan Romberg, Norbert Mattern & Horst Wendrock

  2. Institute of Materials Science, Technical University (TU) Dresden, D-01062, Dresden, Germany

    Jürgen Eckert

Authors
  1. Uta Kühn
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  2. Jan Romberg
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  3. Norbert Mattern
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  4. Horst Wendrock
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  5. Jürgen Eckert
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Correspondence to Uta Kühn.

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This author was an editor of this journal during the review and decision stage. For the JMR policy on review and publication of manuscripts authored by editors, please refer to http://www.mrs.org/jmr_policy

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Kühn, U., Romberg, J., Mattern, N. et al. Transformation-induced plasticity in Fe-Cr-V-C. Journal of Materials Research 25, 368–374 (2010). https://doi.org/10.1557/JMR.2010.0052

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  • DOI: https://doi.org/10.1557/JMR.2010.0052

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