Open AccessStructural-morphological features and fretting resistance of nanostructured topocomposites formed by ion-plasma modification
Author(s) -
Д. Н. Коротаев,
K. N. Poleschenko,
Е. Н. Еремин,
G. A. Vershinin,
Е. Е. Тарасов,
Е. В. Иванова
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1260/6/062013
Subject(s) - materials science , fretting , metastability , nanocrystal , plasma , amorphous solid , dislocation , surface modification , composite material , nanotechnology , metallurgy , mechanical engineering , crystallography , chemistry , physics , quantum mechanics , engineering
The article proposes an approach to solving the problem of increasing fretting resistance of lock joints of blades for gas turbine engines through the creation of nanostructured topocomposites with the surface layers in a metastable state having a low shear stability in terms of vibrofriction. The authors implement the method of vacuum combined ion-plasma processing, which allows forming the surface layers of the material with mixed amorphous-nanocrystal structure and purposeful controlling the surface morphology. They show that the proposed flow diagram allows developing the required morphology from the arrays of nano-sized conglomerates of the “asperity – cavity” type on the surface. A comparative study of fretting resistance of nanostructured topocomposites in terms of vibrofriction is carried out. It is established that the specificity of their wear is to reduce the wear rate at the initial stage.