Hydrodynamic ductile erosion of aluminium by a pulsed water jet moving in an inclined trajectory

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F19%3A00503701" target="_blank" >RIV/68145535:_____/19:00503701 - isvavai.cz</a>

Alternative codes found

RIV/60460709:41310/19:79300

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0043164818314601" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0043164818314601</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.wear.2019.03.015" target="_blank" >10.1016/j.wear.2019.03.015</a>

Result language

angličtina

Original language name

Hydrodynamic ductile erosion of aluminium by a pulsed water jet moving in an inclined trajectory

Original language description

This study addresses the erosion transition of an aluminium surface arising from the periodic impact of a tangentiallynacting pulsating water jet (PWJ) with a spatial frequency of f=20 kHz. The erosion effect was observednas a function of the standoff distance z (mm) along an incline (from 5mm to 90 mm) and constantntrajectory (at standoff distances of z=25 mm, 75mm and 125 mm) at a jet pressure of 100 MPa and traversenspeed v=10 mm/s. The aim of this study is to assess the manner in which the erosion along the PWJ pathwaynchanges the measured dynamic signal (by means of acoustic emission measurements). The effects of hydrodynamicnerosion, such as elastic and plastic deformation, were observed with the aid of a scanning electronnmicroscope and compared with time records in terms of acoustic emission (AE) recorded during impact. Movingnthe PWJ head and gradually changing the standoff distance along the inclined trajectory resulted in differentnerosion regimes. With a gradual increase in the standoff distance (from 5mm–90 mm), the observed erosionnregimes were observed in terms of micro-pitting action, crack and crater formation and material folding/upheaving.nThe erosion effects of a PWJ compared with those of a continuous water jet were investigated atnconstant standoff distances of z=25 mm, z=75mm and z=125 mm. The differences in the erosion phenomenonnunder different conditions were observed in terms of the material damage, crater dimensions andnsurface and sub-surface features. The AE recorded during the impact of the PWJ demonstrates a correlationnbetween the ongoing erosion phenomenon and the AE signals. This relation for the encoded complex waveformn(PWJ) confirms the significant information about the ongoing process in terms of material deformation andndislocation movement.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

20501 - Materials engineering

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)

Publication year

2019

Confidentiality

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

Name of the periodical

Wear

ISSN

0043-1648

e-ISSN

—

Volume of the periodical

428-429

Issue of the periodical within the volume

June 2019

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

178-192

UT code for WoS article

000471596300018

EID of the result in the Scopus database

2-s2.0-85063208060