Plastic deformation by glassy structure control in Zr-Al-Ni-Cu-based BMGs

J. Saida; A. D. Setyawan; H. Kato; M. Matsushita; A. Inoue

doi:10.1016/j.jallcom.2010.02.049

Plastic deformation by glassy structure control in Zr-Al-Ni-Cu-based BMGs

J. Saida, A. D. Setyawan, H. Kato, M. Matsushita, A. Inoue

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

6 Citations (Scopus)

Abstract

Zr₆₅Al_7.5Ni₁₀Cu_17.5-xPd _x (x = 0-17.5) bulk metallic glasses (BMGs) were produced in various chamber atmospheres in Cu mold casting. The glassy structure with a larger amount of relaxation enthalpy can be obtained casting under the ambient Ar and He atmospheres, which originates from enhanced cooling effect. These unrelaxed BMGs exhibit an improvement of ductility in the compressive deformation. Especially, Pd-containing BMGs have a significant plasticity of approximately 6%, in which deformation-induced inhomogeneous nanocrystallization also occurs. The synergistic effect of unrelaxed glassy structure and deformation-induced nanostructure change is regarded as a new technique for the improvement of ductility in the BMGs.

Original language	English
Pages (from-to)	S52-S55
Journal	Journal of Alloys and Compounds
Volume	504
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jallcom.2010.02.049
Publication status	Published - 2010 Aug

Keywords

Mechanical properties
Metallic glasses
Microstructure
Phase transitions
Thermal analysis
Transmission electron microscopy

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2010.02.049

Cite this

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title = "Plastic deformation by glassy structure control in Zr-Al-Ni-Cu-based BMGs",

abstract = "Zr65Al7.5Ni10Cu17.5-xPd x (x = 0-17.5) bulk metallic glasses (BMGs) were produced in various chamber atmospheres in Cu mold casting. The glassy structure with a larger amount of relaxation enthalpy can be obtained casting under the ambient Ar and He atmospheres, which originates from enhanced cooling effect. These unrelaxed BMGs exhibit an improvement of ductility in the compressive deformation. Especially, Pd-containing BMGs have a significant plasticity of approximately 6%, in which deformation-induced inhomogeneous nanocrystallization also occurs. The synergistic effect of unrelaxed glassy structure and deformation-induced nanostructure change is regarded as a new technique for the improvement of ductility in the BMGs.",

keywords = "Mechanical properties, Metallic glasses, Microstructure, Phase transitions, Thermal analysis, Transmission electron microscopy",

author = "J. Saida and Setyawan, {A. D.} and H. Kato and M. Matsushita and A. Inoue",

note = "Funding Information: This work is supported by Grant-in-Aid of the Ministry of Education, Sports, Culture, Science and Technology , Japan, Scientific Research (A) and (B), Priority Area on “Science and Technology of Microwave-Induced, Thermally Non-Equilibrium Reaction Fields” . It is also supported by Japan Science Promotion Society (JSPS), “Asian Core Program” .",

year = "2010",

month = aug,

doi = "10.1016/j.jallcom.2010.02.049",

language = "English",

volume = "504",

pages = "S52--S55",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

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T1 - Plastic deformation by glassy structure control in Zr-Al-Ni-Cu-based BMGs

AU - Saida, J.

AU - Setyawan, A. D.

AU - Kato, H.

AU - Matsushita, M.

AU - Inoue, A.

N1 - Funding Information: This work is supported by Grant-in-Aid of the Ministry of Education, Sports, Culture, Science and Technology , Japan, Scientific Research (A) and (B), Priority Area on “Science and Technology of Microwave-Induced, Thermally Non-Equilibrium Reaction Fields” . It is also supported by Japan Science Promotion Society (JSPS), “Asian Core Program” .

PY - 2010/8

Y1 - 2010/8

N2 - Zr65Al7.5Ni10Cu17.5-xPd x (x = 0-17.5) bulk metallic glasses (BMGs) were produced in various chamber atmospheres in Cu mold casting. The glassy structure with a larger amount of relaxation enthalpy can be obtained casting under the ambient Ar and He atmospheres, which originates from enhanced cooling effect. These unrelaxed BMGs exhibit an improvement of ductility in the compressive deformation. Especially, Pd-containing BMGs have a significant plasticity of approximately 6%, in which deformation-induced inhomogeneous nanocrystallization also occurs. The synergistic effect of unrelaxed glassy structure and deformation-induced nanostructure change is regarded as a new technique for the improvement of ductility in the BMGs.

AB - Zr65Al7.5Ni10Cu17.5-xPd x (x = 0-17.5) bulk metallic glasses (BMGs) were produced in various chamber atmospheres in Cu mold casting. The glassy structure with a larger amount of relaxation enthalpy can be obtained casting under the ambient Ar and He atmospheres, which originates from enhanced cooling effect. These unrelaxed BMGs exhibit an improvement of ductility in the compressive deformation. Especially, Pd-containing BMGs have a significant plasticity of approximately 6%, in which deformation-induced inhomogeneous nanocrystallization also occurs. The synergistic effect of unrelaxed glassy structure and deformation-induced nanostructure change is regarded as a new technique for the improvement of ductility in the BMGs.

KW - Mechanical properties

KW - Metallic glasses

KW - Microstructure

KW - Phase transitions

KW - Thermal analysis

KW - Transmission electron microscopy

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DO - 10.1016/j.jallcom.2010.02.049

M3 - Article

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SN - 0925-8388

VL - 504

SP - S52-S55

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - SUPPL. 1

ER -

Plastic deformation by glassy structure control in Zr-Al-Ni-Cu-based BMGs

Abstract

Keywords

ASJC Scopus subject areas

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