Hydrodynamic erosion of copper with different grain sizes

Result code in 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>

Alternative codes found

RIV/61989100:27230/25:10259510

Result on the web

<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>

Result language

angličtina

Original language name

Hydrodynamic erosion of copper with different grain sizes

Original language description

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.

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

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

MM Science Journal

ISSN

1803-1269

e-ISSN

1805-0476

Volume of the periodical

2025

Issue of the periodical within the volume

Oct

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

10

Pages from-to

8654-8663

UT code for WoS article

001585883700001

EID of the result in the Scopus database

2-s2.0-105018521956