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Article | REF: TRI500 V1

Theory of wear - Measurement, contacts characterization and wear rate

Authors: Éric FELDER, Pierre MONTMITONNET

Publication date: October 10, 2015

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1. Fundamental concepts and methods of wear measurement

1.1 Definition of wear

Wear is the loss of material caused by relative tangential movement between two solid bodies. At the global scale of each part, it is therefore characterized by the volume lost V i (i = 1,2). On a local scale, wear induces at each point of the two parts a wear depth in the direction normal to the surface Δz i (figure 1 ). It also results in the emission of debris from the parts, which is the result of geometric, mechanical, thermal and physicochemical interactions between bodies present at the interface and on the surface of the...

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