INVESTIGATION OF THE INFLUENCE OF FRICTION PAIR ELEMENTS CONTACT GEOMETRY ON FRETTING-CORROSION WEAR PROCESS
Journal Title: Проблеми тертя та зношування - Year 2018, Vol 78, Issue
Abstract
Questions of dependence of wear intensity of friction pairs material on the scheme and the con- tact size of friction pair elements, and also on the amplitude-loading fretting parameters are considered. The research was carried out on samples made of titanium alloys VТ20, VТ8, VТ22 and aluminum alloy D16Т in accordance with the "plane-cylinder" contact scheme and the plane annular contact of continuous and discontinuous ring with cylinder end face. Analysis of results of comparative tests by the "plane-cylinder" contact scheme of samples made of al- loys VT20, VТ8 and D16Т showed that the increasing of the surface relative strengthening parameter leads to the wear intensity increase. The mechanism of formation of protective sec- ondary structures on the friction surface was investigated using by electron microscopic and X- ray spectral analyses. The critical fretting amplitude above which the wear intensity increases sharply is lower for the type of contact, which provides better possibilities of wearing products removing from the friction zone.
Authors and Affiliations
O. I. DUKHOTA, A. O. KORNIENKO, V. V. KHARCHENKO, N. O. NAUMENKO, I. V. KOSTETSKYI, M. A. HLOVYN
Keywords
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