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

J. M. Park; D. H. Kim; J. Eckert

doi:10.1016/j.jallcom.2011.10.026

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

J. M. Park, D. H. Kim, J. Eckert

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

7 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 language	English
Pages (from-to)	S70-S73
Journal	Journal of Alloys and Compounds
Volume	536
Issue number	SUPPL.1
DOIs	https://doi.org/10.1016/j.jallcom.2011.10.026
Publication status	Published - 2012 Sep 25

Bibliographical note

Funding Information:
The authors are grateful to G. Wang, M. Stoica, O. Shuleshova, R. Li, S. Pauly, S. Scudino, U. Kühn, and W.T. Kim for valuable discussions. This work was supported by the Defense Acquisition Program Administration (DAPA) and the Agency for Defense Development (ADD) , and also supported by the Global Research Laboratory Program of the Korea Ministry of Science and Technology , and by the Center for Advanced Materials Processing (CAMP) of the 21st Century Frontier R&D Program of the Korea Ministry of Knowledge Economy .

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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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.",

author = "Park, {J. M.} and Kim, {D. H.} and J. Eckert",

note = "Funding Information: The authors are grateful to G. Wang, M. Stoica, O. Shuleshova, R. Li, S. Pauly, S. Scudino, U. K{\"u}hn, and W.T. Kim for valuable discussions. This work was supported by the Defense Acquisition Program Administration (DAPA) and the Agency for Defense Development (ADD) , and also supported by the Global Research Laboratory Program of the Korea Ministry of Science and Technology , and by the Center for Advanced Materials Processing (CAMP) of the 21st Century Frontier R&D Program of the Korea Ministry of Knowledge Economy .",

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

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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