Parametric Studies of Effect of Cavitation Jet Modes on Wear Rate of Surface of Structural Materials
Alexey Mednikov,
Olga Zilova,
Aleksandr Tkhabisimov,
Marat Dasaev,
Sergey Grigoriev
Affiliations
Alexey Mednikov
Laboratory of Functional Coatings in Power Engineering, Federal State Budget Educational Institution of Higher Education, MIREA-Russian Technological University, 78 Vernadskogo Ave., Moscow 119454, Russia
Olga Zilova
Laboratory of Functional Coatings in Power Engineering, Federal State Budget Educational Institution of Higher Education, MIREA-Russian Technological University, 78 Vernadskogo Ave., Moscow 119454, Russia
Aleksandr Tkhabisimov
Laboratory of Functional Coatings in Power Engineering, Federal State Budget Educational Institution of Higher Education, MIREA-Russian Technological University, 78 Vernadskogo Ave., Moscow 119454, Russia
Marat Dasaev
Laboratory of Functional Coatings in Power Engineering, Federal State Budget Educational Institution of Higher Education, MIREA-Russian Technological University, 78 Vernadskogo Ave., Moscow 119454, Russia
Sergey Grigoriev
Laboratory of Functional Coatings in Power Engineering, Federal State Budget Educational Institution of Higher Education, MIREA-Russian Technological University, 78 Vernadskogo Ave., Moscow 119454, Russia
In this study the kinetic curves of cavitation wear of cast steels 20 GL and 30 L used for production of critical elements of hydraulic machines were obtained. The typical predominance of growth rate of cavitation mark diameter over its depth was found on the surfaces of the investigated cast steels. The revealed phenomenon made it possible to offer a formula for estimating the volume removal of the examined cast steels in order to expand the scope of the method according to ASTM G134-17. This method uses profilometry and microscopy and allows to determine cavitation resistance both for homogeneous and heterogeneous materials, including materials after modification of their surface (with different types of coatings and hardenings).