Fretting Fatigue Behavior of a Titanium Alloy Ti-6AL-4V at Elevated Temperature
Sahan Onder
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Fretting Fatigue Behavior of a Titanium Alloy Ti-6AL-4V at Elevated Temperature

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Fretting fatigue crack initiation in titanium alloy, Ti-6Al-4V, at elevated temperature is investigated experimentally and analytically using finite element analysis. The temperature of this study is chosen to be 260 oC. Several specimens are tested at different stress levels to establish the life data (i.e. S-N relationship). The crack initiation location and the crack angle orientation along the contact surface are determined using scanning electron microscopy. Finite element analysis is used to obtain the stress states for the experimental conditions used during the fretting fatigue tests. ...