Tension-compression yield asymmetry in as-cast magnesium alloy

Sung Hyuk Park; Jeong Hun Lee; Byoung Gi Moon; Bong Sun You

doi:10.1016/j.jallcom.2014.07.164

Tension-compression yield asymmetry in as-cast magnesium alloy

Sung Hyuk Park, Jeong Hun Lee, Byoung Gi Moon, Bong Sun You

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

89 Scopus citations

Abstract

The tension-compression asymmetry in a randomly textured cast magnesium alloy is investigated in terms of its {10-12} twinning characteristics. This {10-12} twinning behavior, which governs the initial stages of deformation, is found to be notably different under tension and compression, consequently resulting in a lower yield strength and higher strain hardening under tension than compression. An interpretation of this behavior is provided through subsequent analysis of the Schmid factor, the grain fraction favorable for twinning, and the dominant twinning mechanism.

Original language	English
Pages (from-to)	277-280
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	617
DOIs	https://doi.org/10.1016/j.jallcom.2014.07.164
State	Published - 25 Dec 2014

Keywords

Magnesium alloys
Schmid factor
Texture
Twinning
Yield asymmetry

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10.1016/j.jallcom.2014.07.164

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abstract = "The tension-compression asymmetry in a randomly textured cast magnesium alloy is investigated in terms of its {10-12} twinning characteristics. This {10-12} twinning behavior, which governs the initial stages of deformation, is found to be notably different under tension and compression, consequently resulting in a lower yield strength and higher strain hardening under tension than compression. An interpretation of this behavior is provided through subsequent analysis of the Schmid factor, the grain fraction favorable for twinning, and the dominant twinning mechanism.",

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AU - Park, Sung Hyuk

AU - Lee, Jeong Hun

AU - Moon, Byoung Gi

AU - You, Bong Sun

PY - 2014/12/25

Y1 - 2014/12/25

N2 - The tension-compression asymmetry in a randomly textured cast magnesium alloy is investigated in terms of its {10-12} twinning characteristics. This {10-12} twinning behavior, which governs the initial stages of deformation, is found to be notably different under tension and compression, consequently resulting in a lower yield strength and higher strain hardening under tension than compression. An interpretation of this behavior is provided through subsequent analysis of the Schmid factor, the grain fraction favorable for twinning, and the dominant twinning mechanism.

AB - The tension-compression asymmetry in a randomly textured cast magnesium alloy is investigated in terms of its {10-12} twinning characteristics. This {10-12} twinning behavior, which governs the initial stages of deformation, is found to be notably different under tension and compression, consequently resulting in a lower yield strength and higher strain hardening under tension than compression. An interpretation of this behavior is provided through subsequent analysis of the Schmid factor, the grain fraction favorable for twinning, and the dominant twinning mechanism.

KW - Magnesium alloys

KW - Schmid factor

KW - Texture

KW - Twinning

KW - Yield asymmetry

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VL - 617

SP - 277

EP - 280

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Tension-compression yield asymmetry in as-cast magnesium alloy

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Keywords

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