Original scientific paper

Erosion of metals by pulsating water jet

Josef Foldyna orcid.org/0000-0003-4288-445X ; Institute of Geonics of the ASCR, Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Studentská 1768/9, 708 00 Ostrava-Poruba, Czech Republic
Jiří Klich ; Institute of Geonics of the ASCR, Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Studentská 1768/9, 708 00 Ostrava-Poruba, Czech Republic
Petr Hlaváček ; Institute of Geonics of the ASCR, Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Studentská 1768/9, 708 00 Ostrava-Poruba, Czech Republic
Michal Zeleňák ; Institute of Geonics of the ASCR, Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Studentská 1768/9, 708 00 Ostrava-Poruba, Czech Republic
Jiří Ščučka ; Institute of Geonics of the ASCR, Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Studentská 1768/9, 708 00 Ostrava-Poruba, Czech Republic

Abstract

The aim of the paper was to determine erosion effects of pulsating water jet impinging the surface of metal sample. The influence of repeated impacts of water pulses and impact velocity (operating pressure) on the erosion of metal surface was investigated. The development of erosion pattern with respect to number of impacts was analysed and discussed. It was found that erosion caused by repeated impacts of water pulses occurs in three stages. The stage of erosion of the surface can be determined by the behaviour of surface characteristics (such as Ra and Rz) with respect to number of impacts of pulsating water jet.

Keywords

erosion effects; pulsating water jet; repeated impact; surface characteristics

Hrčak ID:

83919

URI

https://hrcak.srce.hr/83919

Publication date:

29.6.2012.

Article data in other languages: croatian

Visits: 3.641 *