Preparation of a Zr-based bulk glassy alloy foam

Takeshi Wada; Xinmin Wang; Hisamichi Kimura; Akihisa Inoue

doi:10.1016/j.scriptamat.2008.07.016

Preparation of a Zr-based bulk glassy alloy foam

Takeshi Wada, Xinmin Wang, Hisamichi Kimura, Akihisa Inoue

IMR - Materials Development Division

Tohoku University

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

18 Citations (Scopus)

Abstract

A Zr₄₈Cu₃₆Al₈Ag₈ bulk metallic glass (BMG) containing spherical pores with 3.9% porosity was prepared by melting a Zr₄₈Cu₃₆Al₈Ag₈ powder under 1.0 MPa pressurized helium. Annealing treatment of the porous alloy in a supercooled liquid region causes expansion of the pores. Highly porous BMG with a cellular structure was prepared by sudden reduction of the helium pressure in the crucible before quenching. The porous alloys exhibited significant plasticity due to a high density of shear bands initiated from pores.

Original language	English
Pages (from-to)	1071-1074
Number of pages	4
Journal	Scripta Materialia
Volume	59
Issue number	10
DOIs	https://doi.org/10.1016/j.scriptamat.2008.07.016
Publication status	Published - 2008 Nov

Keywords

Foaming
Metallic glass
Porous material
Shear bands

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10.1016/j.scriptamat.2008.07.016

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title = "Preparation of a Zr-based bulk glassy alloy foam",

abstract = "A Zr48Cu36Al8Ag8 bulk metallic glass (BMG) containing spherical pores with 3.9% porosity was prepared by melting a Zr48Cu36Al8Ag8 powder under 1.0 MPa pressurized helium. Annealing treatment of the porous alloy in a supercooled liquid region causes expansion of the pores. Highly porous BMG with a cellular structure was prepared by sudden reduction of the helium pressure in the crucible before quenching. The porous alloys exhibited significant plasticity due to a high density of shear bands initiated from pores.",

keywords = "Foaming, Metallic glass, Porous material, Shear bands",

author = "Takeshi Wada and Xinmin Wang and Hisamichi Kimura and Akihisa Inoue",

note = "Funding Information: This work was supported by Research and Development Project on Advanced Metallic Glasses, Inorganic Materials and Joining Technology from the Ministry of Education, Science, Sports and Culture of Japan.",

year = "2008",

month = nov,

doi = "10.1016/j.scriptamat.2008.07.016",

language = "English",

volume = "59",

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journal = "Scripta Materialia",

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T1 - Preparation of a Zr-based bulk glassy alloy foam

AU - Wada, Takeshi

AU - Wang, Xinmin

AU - Kimura, Hisamichi

AU - Inoue, Akihisa

N1 - Funding Information: This work was supported by Research and Development Project on Advanced Metallic Glasses, Inorganic Materials and Joining Technology from the Ministry of Education, Science, Sports and Culture of Japan.

PY - 2008/11

Y1 - 2008/11

N2 - A Zr48Cu36Al8Ag8 bulk metallic glass (BMG) containing spherical pores with 3.9% porosity was prepared by melting a Zr48Cu36Al8Ag8 powder under 1.0 MPa pressurized helium. Annealing treatment of the porous alloy in a supercooled liquid region causes expansion of the pores. Highly porous BMG with a cellular structure was prepared by sudden reduction of the helium pressure in the crucible before quenching. The porous alloys exhibited significant plasticity due to a high density of shear bands initiated from pores.

AB - A Zr48Cu36Al8Ag8 bulk metallic glass (BMG) containing spherical pores with 3.9% porosity was prepared by melting a Zr48Cu36Al8Ag8 powder under 1.0 MPa pressurized helium. Annealing treatment of the porous alloy in a supercooled liquid region causes expansion of the pores. Highly porous BMG with a cellular structure was prepared by sudden reduction of the helium pressure in the crucible before quenching. The porous alloys exhibited significant plasticity due to a high density of shear bands initiated from pores.

KW - Foaming

KW - Metallic glass

KW - Porous material

KW - Shear bands

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DO - 10.1016/j.scriptamat.2008.07.016

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SP - 1071

EP - 1074

JO - Scripta Materialia

JF - Scripta Materialia

IS - 10

ER -

Preparation of a Zr-based bulk glassy alloy foam

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Keywords

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