Enhanced plasticity of Fe-Nb-B-(Ni, Cu) bulk metallic glasses by controlling the heterogeneity and elastic constants

J. M. Park, Do Hyang Kim, J. Eckert

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Influence of the micro-alloying of Cu and the partial substitution of Fe by Ni on mechanical properties was investigated in Fe-Nb-B-(Ni, Cu) bulk metallic glasses (BMGs). When the addition of Cu content was properly adjusted with 0.5 at.%, the (Fe 0.71Nb 0.06B 0.23) 99.5Cu 0.5 alloy exhibits enhanced plasticity of 4.5% due to the precipitation of nano-scale particles. Meanwhile, the partial replacement of Ni for Fe also effectively improves the plastic strain caused by tuning the elastic constants. The (Fe 0.5Ni 0.5) 71Nb 6B 23 alloy with 1:1 Ni-to-Fe concentration ratio shows a large Poisson's ratio (0.356) and a pronounced plastic strain of 4.2%. These results indicate the improved room temperature plasticity of Fe-Nb-B-(Ni, Cu) BMGs can be achieved by the appropriate control of the heterogeneity and intrinsic elastic properties.

Original languageEnglish
JournalJournal of Alloys and Compounds
Volume536
Issue numberSUPPL.1
DOIs
Publication statusPublished - 2012 Sep 25

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Metallic glass
Elastic constants
Plasticity
Plastic deformation
Poisson ratio
Alloying
Substitution reactions
Tuning
Mechanical properties
Temperature

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

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title = "Enhanced plasticity of Fe-Nb-B-(Ni, Cu) bulk metallic glasses by controlling the heterogeneity and elastic constants",
abstract = "Influence of the micro-alloying of Cu and the partial substitution of Fe by Ni on mechanical properties was investigated in Fe-Nb-B-(Ni, Cu) bulk metallic glasses (BMGs). When the addition of Cu content was properly adjusted with 0.5 at.{\%}, the (Fe 0.71Nb 0.06B 0.23) 99.5Cu 0.5 alloy exhibits enhanced plasticity of 4.5{\%} due to the precipitation of nano-scale particles. Meanwhile, the partial replacement of Ni for Fe also effectively improves the plastic strain caused by tuning the elastic constants. The (Fe 0.5Ni 0.5) 71Nb 6B 23 alloy with 1:1 Ni-to-Fe concentration ratio shows a large Poisson's ratio (0.356) and a pronounced plastic strain of 4.2{\%}. These results indicate the improved room temperature plasticity of Fe-Nb-B-(Ni, Cu) BMGs can be achieved by the appropriate control of the heterogeneity and intrinsic elastic properties.",
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Enhanced plasticity of Fe-Nb-B-(Ni, Cu) bulk metallic glasses by controlling the heterogeneity and elastic constants. / Park, J. M.; Kim, Do Hyang; Eckert, J.

In: Journal of Alloys and Compounds, Vol. 536, No. SUPPL.1, 25.09.2012.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Enhanced plasticity of Fe-Nb-B-(Ni, Cu) bulk metallic glasses by controlling the heterogeneity and elastic constants

AU - Park, J. M.

AU - Kim, Do Hyang

AU - Eckert, J.

PY - 2012/9/25

Y1 - 2012/9/25

N2 - Influence of the micro-alloying of Cu and the partial substitution of Fe by Ni on mechanical properties was investigated in Fe-Nb-B-(Ni, Cu) bulk metallic glasses (BMGs). When the addition of Cu content was properly adjusted with 0.5 at.%, the (Fe 0.71Nb 0.06B 0.23) 99.5Cu 0.5 alloy exhibits enhanced plasticity of 4.5% due to the precipitation of nano-scale particles. Meanwhile, the partial replacement of Ni for Fe also effectively improves the plastic strain caused by tuning the elastic constants. The (Fe 0.5Ni 0.5) 71Nb 6B 23 alloy with 1:1 Ni-to-Fe concentration ratio shows a large Poisson's ratio (0.356) and a pronounced plastic strain of 4.2%. These results indicate the improved room temperature plasticity of Fe-Nb-B-(Ni, Cu) BMGs can be achieved by the appropriate control of the heterogeneity and intrinsic elastic properties.

AB - Influence of the micro-alloying of Cu and the partial substitution of Fe by Ni on mechanical properties was investigated in Fe-Nb-B-(Ni, Cu) bulk metallic glasses (BMGs). When the addition of Cu content was properly adjusted with 0.5 at.%, the (Fe 0.71Nb 0.06B 0.23) 99.5Cu 0.5 alloy exhibits enhanced plasticity of 4.5% due to the precipitation of nano-scale particles. Meanwhile, the partial replacement of Ni for Fe also effectively improves the plastic strain caused by tuning the elastic constants. The (Fe 0.5Ni 0.5) 71Nb 6B 23 alloy with 1:1 Ni-to-Fe concentration ratio shows a large Poisson's ratio (0.356) and a pronounced plastic strain of 4.2%. These results indicate the improved room temperature plasticity of Fe-Nb-B-(Ni, Cu) BMGs can be achieved by the appropriate control of the heterogeneity and intrinsic elastic properties.

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