Erosion patterns of ultrasonic pulsating water jet on aluminum with extended tubular nozzle

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F25%3A10259508" target="_blank" >RIV/61989100:27230/25:10259508 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007/s43452-025-01348-7" target="_blank" >https://link.springer.com/article/10.1007/s43452-025-01348-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s43452-025-01348-7" target="_blank" >10.1007/s43452-025-01348-7</a>

Result language

angličtina

Original language name

Erosion patterns of ultrasonic pulsating water jet on aluminum with extended tubular nozzle

Original language description

This paper presents a controlled experimental investigation into the erosion evolution induced by a 20 kHz ultrasonic pulsating water jet, focusing on its potential for precise material removal. Water droplet volumes of V = 1.53 mm3 were generated and applied to aluminum samples at a pressure of p = 15 MPa. Utilizing extended long nozzles with diameters of 0.4, 0.5, and 0.6 mm, erosion patterns were examined over time intervals ranging from 0.25 to 4 s, with increments of 0.25 s. Scanning Electron Microscopy analysis revealed a progressive degradation process, starting with initial pitting and evolving into complex crater formations. For the 0.6 mm nozzle at 0.25 s, a distinct &apos;corona jet&apos; footprint indicated a hollow cone jet presence, with erosion activity predominantly by the peripheral thin pulsating part. Quantitative analysis showed a non-linear, often logarithmic, increase in erosion depth, hypothesized to result from a negative feedback mechanism where surface roughening reduces the impact pressure peak and disrupts droplet surface tension. Eroded volume, conversely, exhibited a more linear increase. Furthermore, detailed SEM of craters, such as the open cavity observed at the edge of a 0.5 mm nozzle crater after 4 s, confirmed significant material fracture and removal driven by the hydrodynamic action of the high-frequency pulsating water jet.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20301 - Mechanical engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Archives of Civil and Mechanical Engineering

ISSN

1644-9665

e-ISSN

2083-3318

Volume of the periodical

25

Issue of the periodical within the volume

7-8

Country of publishing house

GB - UNITED KINGDOM

Number of pages

17

Pages from-to

nestránkováno

UT code for WoS article

001587931200001

EID of the result in the Scopus database

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