Effect of Cu on nanocrystallization and plastic properties of FeSiBPCu bulk metallic glasses

Xue Li; Hidemi Kato; Kunio Yubuta; Akihiro Makino; Akihisa Inoue

doi:10.1016/j.msea.2009.12.026

Effect of Cu on nanocrystallization and plastic properties of FeSiBPCu bulk metallic glasses

Xue Li, Hidemi Kato, Kunio Yubuta, Akihiro Makino, Akihisa Inoue

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

38 Citations (Scopus)

Abstract

This study was focused on improving the plastic properties of FeSiBP bulk metallic glasses (BMGs) by adding small amount of Cu (0.1-0.6%). BMGs with significant plastic strain of up to around 3.1% and a strength of 3.3 GPa were obtained in our investigation. Multiple shear bands and related shear ledges were observed on the deformed specimen. The high plasticity is attributed to the nano-scale inhomogeneity that results from phase separation, which can hinder the propagation of shear bands, in effect promoting multiple shearing. The characteristic size of the α-Fe nanoparticles embedded in the glassy matrix changed with Cu content. Our results indicated a dependence between the plastic behavior and the size of the α-Fe nanoparticles. A higher Cu content resulted in an increase in the size of the α-Fe nanoparticles. Of all the samples tested in our investigation, the (Fe_0.76Si_0.096B_0.084P_0.06)_99.9Cu_0.1 alloy exhibited the best plastic properties.

Original language	English
Pages (from-to)	2598-2602
Number of pages	5
Journal	Materials Science and Engineering A
Volume	527
Issue number	10-11
DOIs	https://doi.org/10.1016/j.msea.2009.12.026
Publication status	Published - 2010 Apr 25

Keywords

Bulk metallic glass
Nanocrystallization
Plasticity
Shear band
α-Fe

ASJC Scopus subject areas

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

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10.1016/j.msea.2009.12.026

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title = "Effect of Cu on nanocrystallization and plastic properties of FeSiBPCu bulk metallic glasses",

abstract = "This study was focused on improving the plastic properties of FeSiBP bulk metallic glasses (BMGs) by adding small amount of Cu (0.1-0.6%). BMGs with significant plastic strain of up to around 3.1% and a strength of 3.3 GPa were obtained in our investigation. Multiple shear bands and related shear ledges were observed on the deformed specimen. The high plasticity is attributed to the nano-scale inhomogeneity that results from phase separation, which can hinder the propagation of shear bands, in effect promoting multiple shearing. The characteristic size of the α-Fe nanoparticles embedded in the glassy matrix changed with Cu content. Our results indicated a dependence between the plastic behavior and the size of the α-Fe nanoparticles. A higher Cu content resulted in an increase in the size of the α-Fe nanoparticles. Of all the samples tested in our investigation, the (Fe0.76Si0.096B0.084P0.06)99.9Cu0.1 alloy exhibited the best plastic properties.",

keywords = "Bulk metallic glass, Nanocrystallization, Plasticity, Shear band, α-Fe",

author = "Xue Li and Hidemi Kato and Kunio Yubuta and Akihiro Makino and Akihisa Inoue",

note = "Funding Information: One of the authors (XL) wishes to acknowledge the financial support from the Global COE Program “Materials Integration (International Center of Education and Research), Tohoku University,” MEXT, Japan.",

year = "2010",

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doi = "10.1016/j.msea.2009.12.026",

language = "English",

volume = "527",

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AU - Li, Xue

AU - Kato, Hidemi

AU - Yubuta, Kunio

AU - Makino, Akihiro

AU - Inoue, Akihisa

N1 - Funding Information: One of the authors (XL) wishes to acknowledge the financial support from the Global COE Program “Materials Integration (International Center of Education and Research), Tohoku University,” MEXT, Japan.

PY - 2010/4/25

Y1 - 2010/4/25

N2 - This study was focused on improving the plastic properties of FeSiBP bulk metallic glasses (BMGs) by adding small amount of Cu (0.1-0.6%). BMGs with significant plastic strain of up to around 3.1% and a strength of 3.3 GPa were obtained in our investigation. Multiple shear bands and related shear ledges were observed on the deformed specimen. The high plasticity is attributed to the nano-scale inhomogeneity that results from phase separation, which can hinder the propagation of shear bands, in effect promoting multiple shearing. The characteristic size of the α-Fe nanoparticles embedded in the glassy matrix changed with Cu content. Our results indicated a dependence between the plastic behavior and the size of the α-Fe nanoparticles. A higher Cu content resulted in an increase in the size of the α-Fe nanoparticles. Of all the samples tested in our investigation, the (Fe0.76Si0.096B0.084P0.06)99.9Cu0.1 alloy exhibited the best plastic properties.

AB - This study was focused on improving the plastic properties of FeSiBP bulk metallic glasses (BMGs) by adding small amount of Cu (0.1-0.6%). BMGs with significant plastic strain of up to around 3.1% and a strength of 3.3 GPa were obtained in our investigation. Multiple shear bands and related shear ledges were observed on the deformed specimen. The high plasticity is attributed to the nano-scale inhomogeneity that results from phase separation, which can hinder the propagation of shear bands, in effect promoting multiple shearing. The characteristic size of the α-Fe nanoparticles embedded in the glassy matrix changed with Cu content. Our results indicated a dependence between the plastic behavior and the size of the α-Fe nanoparticles. A higher Cu content resulted in an increase in the size of the α-Fe nanoparticles. Of all the samples tested in our investigation, the (Fe0.76Si0.096B0.084P0.06)99.9Cu0.1 alloy exhibited the best plastic properties.

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Effect of Cu on nanocrystallization and plastic properties of FeSiBPCu bulk metallic glasses

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