Effect of Nb on microstructure and mechanical properties of ultrafine eutectic Fe-Ni-B-Si composites

D. H. Pi, G. A. Song, J. H. Han, J. M. Park, G. R. Lim, D. H. Kim, S. Yi, S. H. Yi, N. S. Lee, Y. Seo, K. B. Kim

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Microstructural investigation on a series of (Fe65.8Ni 14.1B14.1Si6)100-xNbx alloys with x = 0, 2, 4, 6 and 8 reveals that Nb addition leads to modify the constitutive phase and morphology of ultrafine eutectic structure. The microstructural change from bimodal to irregular eutectic structures by addition of Nb has a strong influence to deteriorate the macroscopic plasticity. The bimodal structure and eutectic colony morphology is considered to be an important factor for enhancing both strength and plasticity.

Original languageEnglish
Pages (from-to)S487-S490
JournalJournal of Alloys and Compounds
Volume504
Issue numberSUPPL. 1
DOIs
StatePublished - Aug 2010

Keywords

  • Composite materials
  • Mechanical properties
  • Microstructure

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