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Anisotropic fatigue behavior of rolled Mg–3Al–1Zn alloy

Published online by Cambridge University Press:  31 January 2011

Seong-Gu Hong ,
Sung Hyuk Park ,
Yong-Hak Huh  and
Chong Soo Lee
Seong-Gu Hong*
Affiliation:
Division of Industrial Metrology, Korea Research Institute of Standards and Science, Daejeon 305-340, Republic of Korea
Sung Hyuk Park
Affiliation:
Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
Yong-Hak Huh
Affiliation:
Division of Industrial Metrology, Korea Research Institute of Standards and Science, Daejeon 305-340, Republic of Korea
Chong Soo Lee*
Affiliation:
Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
*
a)Address all correspondence to this author. e-mail: sghong@kriss.re.kr or hsg@kaist.ac.kr
b)Address all correspondence to this author. e-mail: cslee@postech.ac.kr
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Abstract

The anisotropy in the fatigue behavior of rolled Mg–3Al–1Zn alloy between the rolling direction and normal direction to the rolling plane was investigated. The {10-12} twinning–detwinning characteristics were found to play key roles in the anisotropic fatigue deformation behavior by inducing a change in the predominant plastic deformation mechanism, which controlled the flow stress and finally influenced the fatigue resistance by generating mean stress. Energy-based approach was successfully used to describe anisotropic fatigue life behavior.

Keywords

MgFatigueMicrostructure
Type
Articles
Information
Journal of Materials Research , Volume 25 , Issue 5 , May 2010 , pp. 966 - 971
Copyright
Copyright © Materials Research Society 2010

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References

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