Microstructure and mechanical properties of a die-cast Mg-9Al alloy containing oxygen atoms

S. W. Kang; H. Kang; D. H. Bae

doi:10.1016/j.matlet.2018.02.023

Microstructure and mechanical properties of a die-cast Mg-9Al alloy containing oxygen atoms

S. W. Kang, H. Kang, D. H. Bae

Department of Materials Science and Engineering

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

4 Citations (Scopus)

Abstract

In this study, the microstructural features and mechanical properties of a high-pressure die-cast (DC) Mg-9Al alloy containing oxygen atoms (Mg-O-9Al alloy) were characterized. The oxygen atoms promoted the formation of nucleation sites of α-Mg under high pressure, including fine cells (12–13 μm), and reduced the number of defect bands compared to the DC Mg-9Al alloy (14–15 μm). The relation between hardness and phase spacing indicated that the dispersion strengthening of the β-phase was dominant. The DC Mg-O-9Al alloy exhibited enhanced tensile properties as compared to the DC Mg-9Al alloy.

Original language	English
Pages (from-to)	16-18
Number of pages	3
Journal	Materials Letters
Volume	219
DOIs	https://doi.org/10.1016/j.matlet.2018.02.023
Publication status	Published - 2018 May 15

Bibliographical note

Funding Information:
This study was supported by the National Research Foundation of Korea grant funded by the Ministry of Science, ICT & Future Planning (MSIP) [NRF-2017R1A2B2007062 ].

Funding Information:
This study was supported by the National Research Foundation of Korea grant funded by the Ministry of Science, ICT & Future Planning (MSIP) [NRF-2017R1A2B2007062].

Publisher Copyright:
© 2018

All Science Journal Classification (ASJC) codes

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

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10.1016/j.matlet.2018.02.023

Cite this

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title = "Microstructure and mechanical properties of a die-cast Mg-9Al alloy containing oxygen atoms",

abstract = "In this study, the microstructural features and mechanical properties of a high-pressure die-cast (DC) Mg-9Al alloy containing oxygen atoms (Mg-O-9Al alloy) were characterized. The oxygen atoms promoted the formation of nucleation sites of α-Mg under high pressure, including fine cells (12–13 μm), and reduced the number of defect bands compared to the DC Mg-9Al alloy (14–15 μm). The relation between hardness and phase spacing indicated that the dispersion strengthening of the β-phase was dominant. The DC Mg-O-9Al alloy exhibited enhanced tensile properties as compared to the DC Mg-9Al alloy.",

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doi = "10.1016/j.matlet.2018.02.023",

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AU - Kang, S. W.

AU - Kang, H.

AU - Bae, D. H.

N1 - Funding Information: This study was supported by the National Research Foundation of Korea grant funded by the Ministry of Science, ICT & Future Planning (MSIP) [NRF-2017R1A2B2007062 ]. Funding Information: This study was supported by the National Research Foundation of Korea grant funded by the Ministry of Science, ICT & Future Planning (MSIP) [NRF-2017R1A2B2007062]. Publisher Copyright: © 2018

PY - 2018/5/15

Y1 - 2018/5/15

N2 - In this study, the microstructural features and mechanical properties of a high-pressure die-cast (DC) Mg-9Al alloy containing oxygen atoms (Mg-O-9Al alloy) were characterized. The oxygen atoms promoted the formation of nucleation sites of α-Mg under high pressure, including fine cells (12–13 μm), and reduced the number of defect bands compared to the DC Mg-9Al alloy (14–15 μm). The relation between hardness and phase spacing indicated that the dispersion strengthening of the β-phase was dominant. The DC Mg-O-9Al alloy exhibited enhanced tensile properties as compared to the DC Mg-9Al alloy.

AB - In this study, the microstructural features and mechanical properties of a high-pressure die-cast (DC) Mg-9Al alloy containing oxygen atoms (Mg-O-9Al alloy) were characterized. The oxygen atoms promoted the formation of nucleation sites of α-Mg under high pressure, including fine cells (12–13 μm), and reduced the number of defect bands compared to the DC Mg-9Al alloy (14–15 μm). The relation between hardness and phase spacing indicated that the dispersion strengthening of the β-phase was dominant. The DC Mg-O-9Al alloy exhibited enhanced tensile properties as compared to the DC Mg-9Al alloy.

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JO - Materials Letters

JF - Materials Letters

ER -

Microstructure and mechanical properties of a die-cast Mg-9Al alloy containing oxygen atoms

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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