Affiliation:
1. University of Newcastle Design Unit Newcastle upon Tyne, UK
2. University of Newcastle School of Chemical Engineering and Advanced Materials Newcastle upon Tyne, UK
Abstract
Metallographic examination performed on a number of micropitted gears has revealed microstructural features similar to those reported in the literature in fatigued bearings, namely, dark etching regions and white etching bands. In addition, a new type of fatigue-induced microstructural constituent was observed close to the surface below asperities referred to as the plastic deformation region. Finally, it is shown that the initiation and propagation of cracks leading to the formation of micropits are related to the phase transformations mentioned previously.
Subject
Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering
Cited by
32 articles.
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