Specifics in studying the aluminum contact fatigue

Aluminum alloys found their application in almost all industries. Certain mechanical engineering products operate under conditions of the cyclically repeating contact load. After a certain number of loading cycles, such products are subject to fatigue destruction. Methods in their service life determination are based on the fatigue curves at the contact interaction. For the aluminum alloys, fatigue curves at the contact interaction are practically missing. To obtain a fatigue curve at contact interaction, a test base was determined, and an experiment was carried out on rolling the aluminum alloy cylindrical samples to the fatigue destruction. Based on the experiment result, the contact fatigue curve was constructed.

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