Underlying mechanisms of drastic reduction in yield asymmetry of extruded Mg-Sn-Zn alloy by Al addition

Sang Hoon Kim; Sung Hyuk Park

doi:10.1016/j.msea.2018.07.063

Underlying mechanisms of drastic reduction in yield asymmetry of extruded Mg-Sn-Zn alloy by Al addition

Sang Hoon Kim, Sung Hyuk Park

Kyungpook National University

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

23 Scopus citations

Abstract

This study demonstrates that the addition of Al to the Mg-7Sn-1Zn alloy significantly reduces the tension–compression yield asymmetry of the extruded alloy and that this reduction is strongly related to the variation in the area fraction of deformed grains that do not undergo dynamic recrystallization. The decrease in the amount of these grains by Al addition has adverse effects on the improvement in the tensile yield strength but beneficial effects on that in the compressive yield strength. The relationship between the microstructural characteristics of deformed grains and the yield strengths of the extruded alloy is discussed herein.

Original language	English
Pages (from-to)	285-290
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	733
DOIs	https://doi.org/10.1016/j.msea.2018.07.063
State	Published - 22 Aug 2018

Keywords

Dynamic recrystallization
Extrusion
Magnesium
Texture
Yield asymmetry

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10.1016/j.msea.2018.07.063

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title = "Underlying mechanisms of drastic reduction in yield asymmetry of extruded Mg-Sn-Zn alloy by Al addition",

abstract = "This study demonstrates that the addition of Al to the Mg-7Sn-1Zn alloy significantly reduces the tension–compression yield asymmetry of the extruded alloy and that this reduction is strongly related to the variation in the area fraction of deformed grains that do not undergo dynamic recrystallization. The decrease in the amount of these grains by Al addition has adverse effects on the improvement in the tensile yield strength but beneficial effects on that in the compressive yield strength. The relationship between the microstructural characteristics of deformed grains and the yield strengths of the extruded alloy is discussed herein.",

keywords = "Dynamic recrystallization, Extrusion, Magnesium, Texture, Yield asymmetry",

author = "Kim, {Sang Hoon} and Park, {Sung Hyuk}",

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AU - Kim, Sang Hoon

AU - Park, Sung Hyuk

PY - 2018/8/22

Y1 - 2018/8/22

N2 - This study demonstrates that the addition of Al to the Mg-7Sn-1Zn alloy significantly reduces the tension–compression yield asymmetry of the extruded alloy and that this reduction is strongly related to the variation in the area fraction of deformed grains that do not undergo dynamic recrystallization. The decrease in the amount of these grains by Al addition has adverse effects on the improvement in the tensile yield strength but beneficial effects on that in the compressive yield strength. The relationship between the microstructural characteristics of deformed grains and the yield strengths of the extruded alloy is discussed herein.

AB - This study demonstrates that the addition of Al to the Mg-7Sn-1Zn alloy significantly reduces the tension–compression yield asymmetry of the extruded alloy and that this reduction is strongly related to the variation in the area fraction of deformed grains that do not undergo dynamic recrystallization. The decrease in the amount of these grains by Al addition has adverse effects on the improvement in the tensile yield strength but beneficial effects on that in the compressive yield strength. The relationship between the microstructural characteristics of deformed grains and the yield strengths of the extruded alloy is discussed herein.

KW - Dynamic recrystallization

KW - Extrusion

KW - Magnesium

KW - Texture

KW - Yield asymmetry

UR - http://www.scopus.com/inward/record.url?scp=85050281421&partnerID=8YFLogxK

U2 - 10.1016/j.msea.2018.07.063

DO - 10.1016/j.msea.2018.07.063

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SN - 0921-5093

VL - 733

SP - 285

EP - 290

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Underlying mechanisms of drastic reduction in yield asymmetry of extruded Mg-Sn-Zn alloy by Al addition

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Keywords

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