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The Ability of Using the Cavitation Phenomenon as a Tool to Modify the Surface Characteristics in Micro and in Nano Level

Hutli, Ezddin and Nedeljkovic, Milos and Bonyar, Attila and Radovic, Nenad and Llic, Vojislav and Debeljkovic, A. (2016) The Ability of Using the Cavitation Phenomenon as a Tool to Modify the Surface Characteristics in Micro and in Nano Level. Tribology International, 101. pp. 88-97. ISSN 0301-679X

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Abstract

The aim of this paper is to investigate the possible application of the cavitation phenomenon as efficient method to modify the surface properties (e.g. the surface roughness ) in the nano and micro levels. A luminum alloy (AlSiMg) specimens were subjected to high speed submerged cavitating jets under various working conditions, for short time periods between 15 and 30 seconds. The force generated by the cavitating jet is employed to modify the surface roughness of the specimen . The target surface was analyzed with o ptical microscopy, white light interferometry, a tomic f orce m icroscopy (AFM) and also with e lectrostatic f orce m icroscopy (EFM). The result s show the possibility to use the cavitation bubbles as a nanofabrication method e. g. for shotless surface peening. With AFM , the deformation mechanism and the formation of planar or wavy slip were also investigated . EFM shows that the changes in the surface roughness also have a strong influence on the electrostatic field above a biased sample.

Item Type: Article
Subjects: T Technology / alkalmazott, műszaki tudományok > T2 Technology (General) / műszaki tudományok általában
T Technology / alkalmazott, műszaki tudományok > TJ Mechanical engineering and machinery / gépészmérnöki tudományok
T Technology / alkalmazott, műszaki tudományok > TK Electrical engineering. Electronics Nuclear engineering / elektrotechnika, elektronika, atomtechnika
Depositing User: Dr. Attila Bonyár
Date Deposited: 05 Oct 2016 08:44
Last Modified: 05 Oct 2016 08:44
URI: http://real.mtak.hu/id/eprint/41371

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