Preparation of cast-iron-based nanocrystalline alloy with Cu and Nb addition

H. Y. Jung, M. Stoica, S. Yi, D. H. Kim, J. Eckert

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The effect of minor Cu and Nb addition on glass-forming ability and nanocrystallization behavior of cast-iron-based bulk metallic glass was investigated. With simultaneous Cu and Nb addition, the crystallization kinetics of the amorphous alloys adequately modified to have enlarged initial nucleation rate and reduced growth rate of the primary α-Fe phase. However, due to the increased tendency to form secondary Fe3C and Fe2P phase, the cast-iron-based bulk metallic glass with combined Cu and Nb addition had a reduced processing window for nanocrystallization. Also, the simultaneous Cu and Nb addition decreased glass-forming ability of the alloy. Thus, it was revealed that the classical nanocrystallization strategy introducing combined Cu and Nb addition is not a suitable alternative to facilitate nanocrystallization of cast-iron-based bulk metallic glasses.

Original languageEnglish
Pages (from-to)54-61
Number of pages8
JournalIntermetallics
Volume69
DOIs
Publication statusPublished - 2016 Feb 1

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Nanocrystallization
Nanocrystalline alloys
Cast iron
Metallic glass
Glass
Crystallization kinetics
Amorphous alloys
Nucleation
Processing

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Jung, H. Y. ; Stoica, M. ; Yi, S. ; Kim, D. H. ; Eckert, J. / Preparation of cast-iron-based nanocrystalline alloy with Cu and Nb addition. In: Intermetallics. 2016 ; Vol. 69. pp. 54-61.
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Preparation of cast-iron-based nanocrystalline alloy with Cu and Nb addition. / Jung, H. Y.; Stoica, M.; Yi, S.; Kim, D. H.; Eckert, J.

In: Intermetallics, Vol. 69, 01.02.2016, p. 54-61.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Preparation of cast-iron-based nanocrystalline alloy with Cu and Nb addition

AU - Jung, H. Y.

AU - Stoica, M.

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AU - Kim, D. H.

AU - Eckert, J.

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AB - The effect of minor Cu and Nb addition on glass-forming ability and nanocrystallization behavior of cast-iron-based bulk metallic glass was investigated. With simultaneous Cu and Nb addition, the crystallization kinetics of the amorphous alloys adequately modified to have enlarged initial nucleation rate and reduced growth rate of the primary α-Fe phase. However, due to the increased tendency to form secondary Fe3C and Fe2P phase, the cast-iron-based bulk metallic glass with combined Cu and Nb addition had a reduced processing window for nanocrystallization. Also, the simultaneous Cu and Nb addition decreased glass-forming ability of the alloy. Thus, it was revealed that the classical nanocrystallization strategy introducing combined Cu and Nb addition is not a suitable alternative to facilitate nanocrystallization of cast-iron-based bulk metallic glasses.

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