Effect of Carbon Addition on the Microstructural Evolution and Mechanical Properties in Hypo-Eutectic Fe-Zr(-Nb) Alloys

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  • Kim Tae Eung
    Center for Non-crystalline Materials, Department of Materials Science and Engineering, Yonsei University
  • Park Jin Man
    Center for Non-crystalline Materials, Department of Materials Science and Engineering, Yonsei University IFW Dresden, Institute for Complex Materials
  • Eckert Jürgen
    IFW Dresden, Institute for Complex Materials TU Dresden, Institute of Materials Science
  • Kim Won Tae
    Division of Applied Science, Cheongju University
  • Stoica Mihai
    IFW Dresden, Institute for Complex Materials
  • Kühn Uta
    IFW Dresden, Institute for Complex Materials
  • Sohn Sung Woo
    Center for Non-crystalline Materials, Department of Materials Science and Engineering, Yonsei University
  • Kim Do Hyang
    Center for Non-crystalline Materials, Department of Materials Science and Engineering, Yonsei University

Bibliographic Information

Published
2010
DOI
  • 10.2320/matertrans.m2009386
Publisher
The Japan Institute of Metals and Materials

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Description

The effect of carbon addition on the microstructure and mechanical properties of Fe-Zr and Fe-Zr-Nb ultrafine eutectic-dendrite composites has been investigated. Addition of carbon leads to the formation of iron solid solution strengthened by carbon interstitials and carbide particles encapsulated by α-Fe dendrites preferentially nucleated on the carbides. Consequently, the ultrafine eutectic Fe-5Zr-5Nb-0.3C (mass%) alloy exhibits high compressive strength (∼1.2 GPa) and large plastic strain (∼24%). The present study suggests another effective way to enhance the mechanical properties of Fe-based nano-eutectic alloys.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 51 (4), 799-802, 2010

    The Japan Institute of Metals and Materials

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