Effect of carbon addition on the microstructural evolution and mechanical properties in hypo-eutectic Fe-Zr(-Nb) alloys

Tae Eung Kim, Jin Man Park, Sung Woo Sohn, Do Hyang Kim, Won Tae Kim, Mihai Stoica, Uta Kühn, Jürgen Eckert

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

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 ar-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.

Original languageEnglish
Pages (from-to)799-802
Number of pages4
JournalMaterials Transactions
Volume51
Issue number4
DOIs
Publication statusPublished - 2010 Apr

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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