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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/60460709:41310/19:79300

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LO1406" target="_blank" >LO1406: Institut čistých technologií těžby a užití energetických surovin - Projekt udržitelnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Wear

ISSN

0043-1648

e-ISSN

—

Svazek periodika

428-429

Číslo periodika v rámci svazku

June 2019

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

15

Strana od-do

178-192

Kód UT WoS článku

000471596300018

EID výsledku v databázi Scopus

2-s2.0-85063208060