Record number :
1162660
Title of article :
Investigation of uniaxial low-cycle fatigue failure behavior of hot-rolled AZ91 magnesium alloy
Author/Authors :
Y.C. Lin، نويسنده , , Xiaomin Chen، نويسنده , , Zhenghua Liu، نويسنده , , Jian Chen، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
11
From page :
122
To page :
132
Abstract :
The uniaxial low-cycle fatigue behavior of hot-rolled AZ91 magnesium alloy was investigated by asymmetric cyclic stress-controlled experiments at room temperature. The effects of the sampling direction, peak stress and stress ratio on the fatigue life were discussed. The fatigue life increases with increasing the stress ratio or decreasing the peak stress. Due to the anisotropic property, the specimen in transverse direction shows superior fatigue resistance. Considering the effects of mean stress on the fatigue strength coefficient and fatigue strength exponent, a modified Basquin model was proposed and validated to evaluate the fatigue life of AZ91 magnesium alloy.
Keywords :
Low-cycle fatigue , magnesium alloy , Mean stress , Fatigue life
Journal title :
INTERNATIONAL JOURNAL OF FATIGUE
Serial Year :
2013
Link To Document :
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