Elsevier

Wear

Volume 7, Issue 4, July–August 1964, Pages 354-367
Wear

Extension of the engineering model for wear to plastics, sintered metals, and platings

https://doi.org/10.1016/0043-1648(64)90228-5Get rights and content

Abstract

The engineering model for wear developed previously for metals1 has been found to be applicable to different plastics, sintered metals and platings. The results of 137 tests for various combinations of sliding materials, with and without lubricants, have shown that wear can be prevented for a given number of cycles if the maximum shear stress is kept below a certain fraction of the yield point in shear of the weaker of the two materials. This fraction is equal to 0.5 for all the plastic-metal combinations that have been investigated under dry and boundary lubricated conditions. However, with respect to the sintered metals and the plated surfaces, this fraction is equal to either 0.5 or 0.2 depending upon the composition of each of the sliding materials as well as the type of lubricant used.

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