Ultrasonic characteristics of porous Zr55Cu30Al 10Ni5 bulk metallic glass fabricated by spark plasma sintering

Guoqiang Xie; Mikio Fukuhara; Dmitri V. Louzguine-Luzgin; Akihisa Inoue

doi:10.1016/j.intermet.2010.03.029

Ultrasonic characteristics of porous Zr₅₅Cu₃₀Al ₁₀Ni₅ bulk metallic glass fabricated by spark plasma sintering

Guoqiang Xie^*
, Mikio Fukuhara
, Dmitri V. Louzguine-Luzgin
, Akihisa Inoue

^*Corresponding author for this work

Tohoku University

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

20 Scopus citations

Abstract

The elastic and damping behaviors of porous Zr₅₅Cu ₃₀Al₁₀Ni₅ glassy alloy fabricated by a spark plasma sintering (SPS) process were investigated as a function of porosity at room temperature. Bulk modulus (K) and Lam parameter (λ) decrease in a parabolic manner, while Young's (E) and shear (G) moduli decrease gently with an increase in porosity. The order of K, λ, E, and G, which is monopolistically characteristic of nonporous glassy alloys, changes to the order of E, K, G, and λ, reflecting a crystalline-like deformation mode which is further confirmed by combining the decrease in Poisson's ratio with the increase in G/K and E/K ratios up to 34.4% porosity. An increase in porosity induces frequency convergence for longitudinal wave, as well as increases in the longitudinal and shear attenuation coefficients.

Original language	English
Pages (from-to)	2014-2018
Number of pages	5
Journal	Intermetallics
Volume	18
Issue number	10
DOIs	https://doi.org/10.1016/j.intermet.2010.03.029
State	Published - Oct 2010
Externally published	Yes

Keywords

B. Elastic properties
B. Glasses, metallic
C. Powder metallurgy
C. Sintering
D. Microstructure

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10.1016/j.intermet.2010.03.029

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title = "Ultrasonic characteristics of porous Zr55Cu30Al 10Ni5 bulk metallic glass fabricated by spark plasma sintering",

abstract = "The elastic and damping behaviors of porous Zr55Cu 30Al10Ni5 glassy alloy fabricated by a spark plasma sintering (SPS) process were investigated as a function of porosity at room temperature. Bulk modulus (K) and Lam parameter (λ) decrease in a parabolic manner, while Young's (E) and shear (G) moduli decrease gently with an increase in porosity. The order of K, λ, E, and G, which is monopolistically characteristic of nonporous glassy alloys, changes to the order of E, K, G, and λ, reflecting a crystalline-like deformation mode which is further confirmed by combining the decrease in Poisson's ratio with the increase in G/K and E/K ratios up to 34.4\% porosity. An increase in porosity induces frequency convergence for longitudinal wave, as well as increases in the longitudinal and shear attenuation coefficients.",

keywords = "B. Elastic properties, B. Glasses, metallic, C. Powder metallurgy, C. Sintering, D. Microstructure",

author = "Guoqiang Xie and Mikio Fukuhara and Louzguine-Luzgin, \{Dmitri V.\} and Akihisa Inoue",

year = "2010",

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doi = "10.1016/j.intermet.2010.03.029",

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AU - Xie, Guoqiang

AU - Fukuhara, Mikio

AU - Louzguine-Luzgin, Dmitri V.

AU - Inoue, Akihisa

PY - 2010/10

Y1 - 2010/10

N2 - The elastic and damping behaviors of porous Zr55Cu 30Al10Ni5 glassy alloy fabricated by a spark plasma sintering (SPS) process were investigated as a function of porosity at room temperature. Bulk modulus (K) and Lam parameter (λ) decrease in a parabolic manner, while Young's (E) and shear (G) moduli decrease gently with an increase in porosity. The order of K, λ, E, and G, which is monopolistically characteristic of nonporous glassy alloys, changes to the order of E, K, G, and λ, reflecting a crystalline-like deformation mode which is further confirmed by combining the decrease in Poisson's ratio with the increase in G/K and E/K ratios up to 34.4% porosity. An increase in porosity induces frequency convergence for longitudinal wave, as well as increases in the longitudinal and shear attenuation coefficients.

AB - The elastic and damping behaviors of porous Zr55Cu 30Al10Ni5 glassy alloy fabricated by a spark plasma sintering (SPS) process were investigated as a function of porosity at room temperature. Bulk modulus (K) and Lam parameter (λ) decrease in a parabolic manner, while Young's (E) and shear (G) moduli decrease gently with an increase in porosity. The order of K, λ, E, and G, which is monopolistically characteristic of nonporous glassy alloys, changes to the order of E, K, G, and λ, reflecting a crystalline-like deformation mode which is further confirmed by combining the decrease in Poisson's ratio with the increase in G/K and E/K ratios up to 34.4% porosity. An increase in porosity induces frequency convergence for longitudinal wave, as well as increases in the longitudinal and shear attenuation coefficients.

KW - B. Elastic properties

KW - B. Glasses, metallic

KW - C. Powder metallurgy

KW - C. Sintering

KW - D. Microstructure

UR - https://www.scopus.com/pages/publications/77955557088

U2 - 10.1016/j.intermet.2010.03.029

DO - 10.1016/j.intermet.2010.03.029

M3 - 文章

AN - SCOPUS:77955557088

SN - 0966-9795

VL - 18

SP - 2014

EP - 2018

JO - Intermetallics

JF - Intermetallics

IS - 10

ER -

Ultrasonic characteristics of porous Zr₅₅Cu₃₀Al ₁₀Ni₅ bulk metallic glass fabricated by spark plasma sintering

Abstract

Keywords

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