Investigation of sandstone erosion by continuous and pulsed water jets
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F19%3A00504926" target="_blank" >RIV/68145535:_____/19:00504926 - isvavai.cz</a>
Alternative codes found
RIV/60460709:41310/19:79251
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1526612518313525?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1526612518313525?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jmapro.2019.04.035" target="_blank" >10.1016/j.jmapro.2019.04.035</a>
Alternative languages
Result language
angličtina
Original language name
Investigation of sandstone erosion by continuous and pulsed water jets
Original language description
The study compares the sandstone erosion manifestations (depth, width, and volume of the removed material)ncaused by continuous and pulsed water jets (WJs) with a frequency f=20 kHz and 40 kHz. The WJ head followsnan inclined trajectory at an angle of 45° to the horizontal surface. The starting point of the head was positioned 5nmm above the sandstone surface. The traverse speed of the head was varied from v = 0.25 mm/s to 1 mm/s. Thenstructural changes and plastic deformation caused by the mechanical effect of the continuous and pulsed WJsnwere analysed using SEM and optical profilometer. The results showed that an optimal standoff distance wasnresponsible for the maximum erosion effect under both continuous and pulsed regimes. The PWJ at f= 40 kHznshowed better erosion performance in terms of depth (6.8 mm), width (6.83 mm) and volume removedn(27.31mm3) as compared to PWJ at f=20 kHz and CWJ. The microstructural topography at varying standoffndistance (z=10 mm to 45 mm) showed erosion features such as micro-pits, cracks, perforated holes responsiblenfor different erosion stages. On-line monitoring via means of acoustic emission was measured to evaluate thenerosion phenomenon on the sandstone surface during the impact of the PWJ and CWJ. The correlation betweennthe acoustic emission results and the erosion parameters showed the progression of the erosion process underndifferent technological conditions.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - 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
Result continuities
Project
<a href="/en/project/LO1406" target="_blank" >LO1406: Institute of clean technologies for mining and utilization of raw materials for energy use -Sustainability program</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Manufacturing Processes
ISSN
1526-6125
e-ISSN
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Volume of the periodical
42
Issue of the periodical within the volume
June 2019
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
121-130
UT code for WoS article
000470952200013
EID of the result in the Scopus database
2-s2.0-85065089235