Full strength compacts by extrusion of glassy metal powder at the supercooled liquid state

Yoshihito Kawamura; Hidemi Kato; Akihisa Inoue; Tsuyoshi Masumoto

doi:10.1063/1.114769

Full strength compacts by extrusion of glassy metal powder at the supercooled liquid state

Yoshihito Kawamura, Hidemi Kato, Akihisa Inoue, Tsuyoshi Masumoto

Materials Development Division

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

185 Citations (Scopus)

Abstract

We report the production of full strength compacts of metallic glass by warm extrusion of powders at the supercooled liquid state just above the glass transition temperature. The alloy used was Zr₆₅Al₁₀Ni ₁₀Cu₁₅ (at. %) which has the lowest viscosity among Zr-based metallic glasses with large supercooled liquid region. The tensile strength and Young's modulus of the glassy powder compacts were 1520 MPa and 80 GPa, respectively, which are similar to that obtained in the as-cast bulk alloy and melt-spun ribbon. This opens up possibilities of producing high strength amorphous alloys with complex shapes.

Original language	English
Pages (from-to)	2008
Number of pages	1
Journal	Applied Physics Letters
Volume	67
DOIs	https://doi.org/10.1063/1.114769
Publication status	Published - 1995

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.114769

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abstract = "We report the production of full strength compacts of metallic glass by warm extrusion of powders at the supercooled liquid state just above the glass transition temperature. The alloy used was Zr65Al10Ni 10Cu15 (at. %) which has the lowest viscosity among Zr-based metallic glasses with large supercooled liquid region. The tensile strength and Young's modulus of the glassy powder compacts were 1520 MPa and 80 GPa, respectively, which are similar to that obtained in the as-cast bulk alloy and melt-spun ribbon. This opens up possibilities of producing high strength amorphous alloys with complex shapes.",

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AU - Kato, Hidemi

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AU - Masumoto, Tsuyoshi

PY - 1995

Y1 - 1995

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AB - We report the production of full strength compacts of metallic glass by warm extrusion of powders at the supercooled liquid state just above the glass transition temperature. The alloy used was Zr65Al10Ni 10Cu15 (at. %) which has the lowest viscosity among Zr-based metallic glasses with large supercooled liquid region. The tensile strength and Young's modulus of the glassy powder compacts were 1520 MPa and 80 GPa, respectively, which are similar to that obtained in the as-cast bulk alloy and melt-spun ribbon. This opens up possibilities of producing high strength amorphous alloys with complex shapes.

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Full strength compacts by extrusion of glassy metal powder at the supercooled liquid state

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