Abstract
Erosion of materials by solid particle impingement is discussed in terms of the joint effect of the friction and the deformation components in the wear process. Formulae for calculating wear have been obtained on the basis of the fatigue theory of solid body failure and corrected using experimental data. Relationships are presented which make it possible to estimate quantitatively how wear is influenced by the physico-mechanical properties of the materials of colliding bodies and by the parameters of a solid particle stream (concentration, size, and granulometric composition). A criterion for erosion evaluation in the surface layer of a mechanism has been derived from studies on the effect of the shape of solid particles on wear. An algorithm is given for calculating reliability at the design stage from wear characteristics.
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