Influence of hetero-duplex structure on mechanical properties of Mg-Al/Cu-Zn alloys

G. A. Song; T. E. Kim; D. H. Kim; F. Prima; K. B. Kim

doi:10.1016/j.msea.2010.09.036

Influence of hetero-duplex structure on mechanical properties of Mg-Al/Cu-Zn alloys

G. A. Song, T. E. Kim, D. H. Kim, F. Prima, K. B. Kim

Department of Materials Science and Engineering

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

3 Citations (Scopus)

Abstract

Hetero-duplex structure containing both structural and spatial heterogeneities has been developed in a series of Mg-Al/Cu-Zn alloys. Among these alloys, a hetero-duplex Mg₇₂Cu₅Zn₂₃ alloy with uniform dispersion of spherical duplex colonies exhibits high yield strength of 455MPa with a plasticity of ∼5%. On the contrary, a hetero-duplex Mg₇₀Al₃Zn₂₂ alloy consisting of typical polygonal duplex colonies undergoes catastrophic failure without macroscopic plasticity. Based on these results, it is possible to consider that the morphology of the hetero-duplex colony plays an important role to control the macroscopic plasticity of the hetero-duplex alloys.

Original language	English
Pages (from-to)	371-378
Number of pages	8
Journal	Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume	528
Issue number	1
DOIs	https://doi.org/10.1016/j.msea.2010.09.036
Publication status	Published - 2010 Nov 25

All Science Journal Classification (ASJC) codes

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

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title = "Influence of hetero-duplex structure on mechanical properties of Mg-Al/Cu-Zn alloys",

abstract = "Hetero-duplex structure containing both structural and spatial heterogeneities has been developed in a series of Mg-Al/Cu-Zn alloys. Among these alloys, a hetero-duplex Mg72Cu5Zn23 alloy with uniform dispersion of spherical duplex colonies exhibits high yield strength of 455MPa with a plasticity of ∼5%. On the contrary, a hetero-duplex Mg70Al3Zn22 alloy consisting of typical polygonal duplex colonies undergoes catastrophic failure without macroscopic plasticity. Based on these results, it is possible to consider that the morphology of the hetero-duplex colony plays an important role to control the macroscopic plasticity of the hetero-duplex alloys.",

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AU - Song, G. A.

AU - Kim, T. E.

AU - Kim, D. H.

AU - Prima, F.

AU - Kim, K. B.

PY - 2010/11/25

Y1 - 2010/11/25

N2 - Hetero-duplex structure containing both structural and spatial heterogeneities has been developed in a series of Mg-Al/Cu-Zn alloys. Among these alloys, a hetero-duplex Mg72Cu5Zn23 alloy with uniform dispersion of spherical duplex colonies exhibits high yield strength of 455MPa with a plasticity of ∼5%. On the contrary, a hetero-duplex Mg70Al3Zn22 alloy consisting of typical polygonal duplex colonies undergoes catastrophic failure without macroscopic plasticity. Based on these results, it is possible to consider that the morphology of the hetero-duplex colony plays an important role to control the macroscopic plasticity of the hetero-duplex alloys.

AB - Hetero-duplex structure containing both structural and spatial heterogeneities has been developed in a series of Mg-Al/Cu-Zn alloys. Among these alloys, a hetero-duplex Mg72Cu5Zn23 alloy with uniform dispersion of spherical duplex colonies exhibits high yield strength of 455MPa with a plasticity of ∼5%. On the contrary, a hetero-duplex Mg70Al3Zn22 alloy consisting of typical polygonal duplex colonies undergoes catastrophic failure without macroscopic plasticity. Based on these results, it is possible to consider that the morphology of the hetero-duplex colony plays an important role to control the macroscopic plasticity of the hetero-duplex alloys.

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Influence of hetero-duplex structure on mechanical properties of Mg-Al/Cu-Zn alloys

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