Paper Titles
Ultrasonic Treatment of Magnesium Alloy Melts and its Effects on Solidification Microstructures
p.129
Microstructure Simulation of Magnesium Alloy
p.133
Effect of Sc on Microstructures and Corrosion Properties of AZ91
p.139
Microstructure of AZ91D in Different Treatment Conditions
p.143
Low-Cycle Fatigue Behavior of Three Die Cast Magnesium Alloys
p.147
Compression Deformation Behavior of AZ91D Magnesium Alloy in Semi-Solid State
p.151
Effects of CaCO3 Modificator on Microstructure and Mechanical Properties of Cast AZ91 Magnesium Alloy
p.155
Microstructure and Mechanical Properties of Mg-Gd-Sm-Zr Alloy
p.159
Mechanical Properties and Creep Behavior of Mg-Gd-Y-Zr Alloys
p.163

Low-Cycle Fatigue Behavior of Three Die Cast Magnesium Alloys

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Abstract:

Totally strain-controlled low cycle fatigue tests with a strain ratio Rε= -1 were carried out on die-cast AZ91HP, AM50HP and AE 42 alloys at a constant strain rate of 2.5×10-3 s-1 and room temperature. The cyclic deformation behavior of the three alloys was investigated through the characteristics of representative hysteresis loops at various total strain amplitudes. Cyclic deformation hardening was observed and the low-cycle fatigue life data were analyzed using the well known Basquin and Coffin-Manson equations. The transition life of the three alloys is considerably low, which can be attributed to the low ductility of these die cast Mg alloys.

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Periodical:

Materials Science Forum (Volumes 546-549)

Pages:

147-150

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.546-549.147

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Online since:

May 2007

Authors:

Chang Yi Wang, Zhen Liu, Li Jia Chen

Keywords:

Cyclic Deformation, Cyclic Hardening, Low Cycle Fatigue, Magnesium Alloy

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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