Influence of Erosion Time on HVOF-Sprayed Cermet Coating: Preliminary Study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F23%3APU156042" target="_blank" >RIV/00216305:26620/23:PU156042 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081723:_____/25:00599133 RIV/68145535:_____/25:00599133 RIV/61989100:27230/25:10259512

Výsledek na webu

<a href="https://link.springer.com/chapter/10.1007/978-3-031-72778-8_12" target="_blank" >https://link.springer.com/chapter/10.1007/978-3-031-72778-8_12</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-031-72778-8_12" target="_blank" >10.1007/978-3-031-72778-8_12</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Erosion Time on HVOF-Sprayed Cermet Coating: Preliminary Study

Popis výsledku v původním jazyce

The vast majority of hard coatings are known for their abrasion resistance. They provide excellent protection against both water erosion and solid particle abrasion. These coatings represent the option on how to protect the substrate in many areas of industrial applications. However, the possible resistance of the coating to the adverse conditions of high-frequency water droplets is still not well investigated. This study deals with the assessment of erosion resistance of WC-CrC-Ni cermet coatings against multiple water droplet impingements. Water droplets were generated using an ultrasonic pulsating water jet with a nominal frequency of 40 kHz. The cermet coating was subjected to different exposure times to assess erosion development and evaluate the integrity of the coating with the substrate. To provide a comparison, the samples were also subjected to continuous water jet utilizing the same conditions. The erosion pits were examined using optical microscopy and digital image analysis for general observations, while electron microscopy was utilized to identify the mechanisms of erosion. The shape, depth, and volume of the pits were measured using a confocal laser scanning microscope to evaluate the intensity of the damage caused by both continuous and discontinuous water jets. The effect of increasing time exposure of the pulsating water jet was evaluated and recalculated to the number of droplet impingements.

Název v anglickém jazyce

Influence of Erosion Time on HVOF-Sprayed Cermet Coating: Preliminary Study

Popis výsledku anglicky

The vast majority of hard coatings are known for their abrasion resistance. They provide excellent protection against both water erosion and solid particle abrasion. These coatings represent the option on how to protect the substrate in many areas of industrial applications. However, the possible resistance of the coating to the adverse conditions of high-frequency water droplets is still not well investigated. This study deals with the assessment of erosion resistance of WC-CrC-Ni cermet coatings against multiple water droplet impingements. Water droplets were generated using an ultrasonic pulsating water jet with a nominal frequency of 40 kHz. The cermet coating was subjected to different exposure times to assess erosion development and evaluate the integrity of the coating with the substrate. To provide a comparison, the samples were also subjected to continuous water jet utilizing the same conditions. The erosion pits were examined using optical microscopy and digital image analysis for general observations, while electron microscopy was utilized to identify the mechanisms of erosion. The shape, depth, and volume of the pits were measured using a confocal laser scanning microscope to evaluate the intensity of the damage caused by both continuous and discontinuous water jets. The effect of increasing time exposure of the pulsating water jet was evaluated and recalculated to the number of droplet impingements.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/GA23-05372S" target="_blank" >GA23-05372S: Povrchová a podpovrchová eroze způsobená vícenásobným dopadem kapek</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

Lecture Notes in Mechanical Engineering

ISBN

978-3-031-72777-1

ISSN

2195-4364

e-ISSN

—

Počet stran výsledku

14

Strana od-do

142-155

Název nakladatele

Springer Nature

Místo vydání

Switzerland

Místo konání akce

Kutna Hora

Datum konání akce

17. 10. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001440441900012