Improved mechanical properties of Mg-7.6Al-0.4Zn alloy through aging prior to extrusion

Jae Gil Jung; Sung Hyuk Park; Hui Yu; Young Min Kim; Young Kook Lee; Bong Sun You

doi:10.1016/j.scriptamat.2014.08.017

Improved mechanical properties of Mg-7.6Al-0.4Zn alloy through aging prior to extrusion

Jae Gil Jung, Sung Hyuk Park, Hui Yu, Young Min Kim, Young Kook Lee, Bong Sun You

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

118 Scopus citations

Abstract

This paper demonstrates that aging prior to extrusion (APE) can greatly enhance the mechanical properties of an extruded Mg-7.6Al-0.4Zn alloy. The fine Mg₁₇Al₁₂ precipitates formed by APE reduce the average size of dynamically recrystallized grains and increase the amount of small Mg₁₇Al₁₂ particles present after extrusion, thereby improving the strength of the alloy. This APE treatment also enhances the ductility of the extruded alloy by decreasing the amount of large banded Mg₁₇Al₁₂ particles, and suppressing the serrated flow during tensile deformation.

Original language	English
Pages (from-to)	8-11
Number of pages	4
Journal	Scripta Materialia
Volume	93
DOIs	https://doi.org/10.1016/j.scriptamat.2014.08.017
State	Published - 15 Dec 2014

Keywords

Aging
Dynamic recrystallization
Extrusion
Magnesium alloys
Precipitation

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10.1016/j.scriptamat.2014.08.017

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title = "Improved mechanical properties of Mg-7.6Al-0.4Zn alloy through aging prior to extrusion",

abstract = "This paper demonstrates that aging prior to extrusion (APE) can greatly enhance the mechanical properties of an extruded Mg-7.6Al-0.4Zn alloy. The fine Mg17Al12 precipitates formed by APE reduce the average size of dynamically recrystallized grains and increase the amount of small Mg17Al12 particles present after extrusion, thereby improving the strength of the alloy. This APE treatment also enhances the ductility of the extruded alloy by decreasing the amount of large banded Mg17Al12 particles, and suppressing the serrated flow during tensile deformation.",

keywords = "Aging, Dynamic recrystallization, Extrusion, Magnesium alloys, Precipitation",

author = "Jung, {Jae Gil} and Park, {Sung Hyuk} and Hui Yu and Kim, {Young Min} and Lee, {Young Kook} and You, {Bong Sun}",

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AU - Jung, Jae Gil

AU - Park, Sung Hyuk

AU - Yu, Hui

AU - Kim, Young Min

AU - Lee, Young Kook

AU - You, Bong Sun

PY - 2014/12/15

Y1 - 2014/12/15

N2 - This paper demonstrates that aging prior to extrusion (APE) can greatly enhance the mechanical properties of an extruded Mg-7.6Al-0.4Zn alloy. The fine Mg17Al12 precipitates formed by APE reduce the average size of dynamically recrystallized grains and increase the amount of small Mg17Al12 particles present after extrusion, thereby improving the strength of the alloy. This APE treatment also enhances the ductility of the extruded alloy by decreasing the amount of large banded Mg17Al12 particles, and suppressing the serrated flow during tensile deformation.

AB - This paper demonstrates that aging prior to extrusion (APE) can greatly enhance the mechanical properties of an extruded Mg-7.6Al-0.4Zn alloy. The fine Mg17Al12 precipitates formed by APE reduce the average size of dynamically recrystallized grains and increase the amount of small Mg17Al12 particles present after extrusion, thereby improving the strength of the alloy. This APE treatment also enhances the ductility of the extruded alloy by decreasing the amount of large banded Mg17Al12 particles, and suppressing the serrated flow during tensile deformation.

KW - Aging

KW - Dynamic recrystallization

KW - Extrusion

KW - Magnesium alloys

KW - Precipitation

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SP - 8

EP - 11

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Improved mechanical properties of Mg-7.6Al-0.4Zn alloy through aging prior to extrusion

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Keywords

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