Influence of Wear Properties on Fretting Fatigue Life of a CK45 Alloy and the Al7175 Alloy

M. Buciumeanu; A.S. Miranda; F.S. Silva

doi:10.4028/www.scientific.net/MSF.587-588.971

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HomeMaterials Science ForumMaterials Science Forum Vols. 587-588Influence of Wear Properties on Fretting Fatigue...

Influence of Wear Properties on Fretting Fatigue Life of a CK45 Alloy and the Al7175 Alloy

Abstract:

The main objective of this work was to study the influence of the wear properties of two commercial alloys (CK45 and Al7175) on their fretting fatigue behavior. It is verified the effect of material local degradation by wear on a fatigue strength reduction factor, namely the stress concentration factor, and on the overall fretting fatigue life of these materials. The fretting fatigue phenomenon is a synergetic effect between wear and fatigue. It is dependent on both the fatigue and the wear properties of the materials. Material properties promoting an increase in wear resistance should enhance fretting fatigue life.