Development of extraordinary high-strength Mg-8Al-0.5Zn alloy via a low temperature and slow speed extrusion

Hui Yu; Sung Hyuk Park; Bong Sun You

doi:10.1016/j.msea.2014.05.058

Development of extraordinary high-strength Mg-8Al-0.5Zn alloy via a low temperature and slow speed extrusion

Hui Yu, Sung Hyuk Park, Bong Sun You

Korea Institute of Materials Science

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

110 Scopus citations

Abstract

An extraordinary high strength Mg-8Al-0.5Zn alloy has been developed through extrusion at a low temperature of 200°C and a slow speed of 0.07mm/s. The as-extruded alloy exhibited a tensile yield strength of 403MPa, an ultimate tensile strength of 437MPa, an elongation of 10.7%, and a low tension-compression yield asymmetry of 0.97. These superior mechanical properties are attributed to the combined effect of ultra-fine recrystallized grains, numerous nano-scale Mg₁₇Al₁₂ precipitates, and strong basal texture.

Original language	English
Pages (from-to)	445-449
Number of pages	5
Journal	Materials Science and Engineering: A
Volume	610
DOIs	https://doi.org/10.1016/j.msea.2014.05.058
State	Published - 29 Jul 2014

Keywords

Dynamic recrystallization
Extrusion
Magnesium alloys
Precipitation
Tensile properties

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10.1016/j.msea.2014.05.058

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title = "Development of extraordinary high-strength Mg-8Al-0.5Zn alloy via a low temperature and slow speed extrusion",

abstract = "An extraordinary high strength Mg-8Al-0.5Zn alloy has been developed through extrusion at a low temperature of 200°C and a slow speed of 0.07mm/s. The as-extruded alloy exhibited a tensile yield strength of 403MPa, an ultimate tensile strength of 437MPa, an elongation of 10.7%, and a low tension-compression yield asymmetry of 0.97. These superior mechanical properties are attributed to the combined effect of ultra-fine recrystallized grains, numerous nano-scale Mg17Al12 precipitates, and strong basal texture.",

keywords = "Dynamic recrystallization, Extrusion, Magnesium alloys, Precipitation, Tensile properties",

author = "Hui Yu and Park, {Sung Hyuk} and You, {Bong Sun}",

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AU - Yu, Hui

AU - Park, Sung Hyuk

AU - You, Bong Sun

PY - 2014/7/29

Y1 - 2014/7/29

N2 - An extraordinary high strength Mg-8Al-0.5Zn alloy has been developed through extrusion at a low temperature of 200°C and a slow speed of 0.07mm/s. The as-extruded alloy exhibited a tensile yield strength of 403MPa, an ultimate tensile strength of 437MPa, an elongation of 10.7%, and a low tension-compression yield asymmetry of 0.97. These superior mechanical properties are attributed to the combined effect of ultra-fine recrystallized grains, numerous nano-scale Mg17Al12 precipitates, and strong basal texture.

AB - An extraordinary high strength Mg-8Al-0.5Zn alloy has been developed through extrusion at a low temperature of 200°C and a slow speed of 0.07mm/s. The as-extruded alloy exhibited a tensile yield strength of 403MPa, an ultimate tensile strength of 437MPa, an elongation of 10.7%, and a low tension-compression yield asymmetry of 0.97. These superior mechanical properties are attributed to the combined effect of ultra-fine recrystallized grains, numerous nano-scale Mg17Al12 precipitates, and strong basal texture.

KW - Dynamic recrystallization

KW - Extrusion

KW - Magnesium alloys

KW - Precipitation

KW - Tensile properties

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SN - 0921-5093

VL - 610

SP - 445

EP - 449

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Development of extraordinary high-strength Mg-8Al-0.5Zn alloy via a low temperature and slow speed extrusion

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Keywords

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