Hydrodynamic erosion of copper with different grain sizes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F25%3A00639728" target="_blank" >RIV/68081723:_____/25:00639728 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27230/25:10259510

Výsledek na webu

<a href="https://www.mmscience.eu/journal/issues/october-2025/articles" target="_blank" >https://www.mmscience.eu/journal/issues/october-2025/articles</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17973/MMSJ.2025_10_2025097" target="_blank" >10.17973/MMSJ.2025_10_2025097</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hydrodynamic erosion of copper with different grain sizes

Popis výsledku v původním jazyce

The evolution of water droplet erosion on copper with varying ngrain sizes altered by heat treatment was investigated. An nultrasonically driven pulsating water jet was employed as a ndroplet generator. The water jet treatment was performed at a nfrequency of 40 kHz using two levels of supply pressure of 20 nand 30 MPa. The measurements of removed volume and nachieved depth show a critical interplay between dropletnsurface interaction development and material properties, nincluding hardness, grain size, and plasticity. Two distinct nerosion phenomena were observed, influenced by the effective ninteraction governed by the feed rates of the PWJ with the nmaterial. At the lowest feed rate (0.5 mm/s), the erosion nresistance of the material modestly increased with the intensity nof heat treatment for both levels of supply pressure. Suggesting nplasticity is the main factor of erosion resistance. The largest nmean depth was recorded in the basic state of the material n(without heat treatment), namely 90.06 µm at a pressure of 20 nMPa, and the minimum value was 42.23 µm at the highest heat ntreatment of 900°C/1h with a pressure of 30 MPa. This ncontrasts with the behaviour at the higher feed rate (0.67 nmm/s), where more severe erosion with heat treatment nintensity was observed. The hardness decreases and grain size nincrease caused by heat treatment intensity are the driving nfactors of erosion resistance at this feedrate. In this case, the nlowest mean depth of 69.46 µm was observed in the basic nheat-untreated state of the material at a pressure of 20 MPa, nand the maximum mean depth of 103.17 µm at 30 MPa was nobserved in the treated sample at 900°C/1h. The results ndemonstrated different erosion responses of the material after nits heat treatment depending on the change in the input feed nrates. These findings contribute to a deeper understanding of nthe mechanisms of PWJ-induced erosion when interacting with nmaterials of different hardness and grain size.

Název v anglickém jazyce

Hydrodynamic erosion of copper with different grain sizes

Popis výsledku anglicky

The evolution of water droplet erosion on copper with varying ngrain sizes altered by heat treatment was investigated. An nultrasonically driven pulsating water jet was employed as a ndroplet generator. The water jet treatment was performed at a nfrequency of 40 kHz using two levels of supply pressure of 20 nand 30 MPa. The measurements of removed volume and nachieved depth show a critical interplay between dropletnsurface interaction development and material properties, nincluding hardness, grain size, and plasticity. Two distinct nerosion phenomena were observed, influenced by the effective ninteraction governed by the feed rates of the PWJ with the nmaterial. At the lowest feed rate (0.5 mm/s), the erosion nresistance of the material modestly increased with the intensity nof heat treatment for both levels of supply pressure. Suggesting nplasticity is the main factor of erosion resistance. The largest nmean depth was recorded in the basic state of the material n(without heat treatment), namely 90.06 µm at a pressure of 20 nMPa, and the minimum value was 42.23 µm at the highest heat ntreatment of 900°C/1h with a pressure of 30 MPa. This ncontrasts with the behaviour at the higher feed rate (0.67 nmm/s), where more severe erosion with heat treatment nintensity was observed. The hardness decreases and grain size nincrease caused by heat treatment intensity are the driving nfactors of erosion resistance at this feedrate. In this case, the nlowest mean depth of 69.46 µm was observed in the basic nheat-untreated state of the material at a pressure of 20 MPa, nand the maximum mean depth of 103.17 µm at 30 MPa was nobserved in the treated sample at 900°C/1h. The results ndemonstrated different erosion responses of the material after nits heat treatment depending on the change in the input feed nrates. These findings contribute to a deeper understanding of nthe mechanisms of PWJ-induced erosion when interacting with nmaterials of different hardness and grain size.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

MM Science Journal

ISSN

1803-1269

e-ISSN

1805-0476

Svazek periodika

2025

Číslo periodika v rámci svazku

Oct

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

8654-8663

Kód UT WoS článku

001585883700001

EID výsledku v databázi Scopus

2-s2.0-105018521956