Dynamic Impact Wear Behavior of HVOF Sprayed Hardmetal Coatings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47718684%3A_____%2F24%3A10002308" target="_blank" >RIV/47718684:_____/24:10002308 - isvavai.cz</a>

Výsledek na webu

<a href="https://dl.asminternational.org/itsc/proceedings-abstract/ITSC2024/84864/580/32505" target="_blank" >https://dl.asminternational.org/itsc/proceedings-abstract/ITSC2024/84864/580/32505</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.31399/asm.cp.itsc2024p0580" target="_blank" >10.31399/asm.cp.itsc2024p0580</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dynamic Impact Wear Behavior of HVOF Sprayed Hardmetal Coatings

Popis výsledku v původním jazyce

Thermally sprayed wear resistant coatings have proven their effectiveness in many applications. Their benefit is unquestionable in the case of mutual sliding contact or abrasive stress caused by hard particles. However, for the case of dynamic impact loading, either single or cyclic, the lifetime of different types of coatings is rarely described, probably due to the complex influence of many parameters. The paper deals with the evaluation of resistance to dynamic impact loading of two types of HVOF-sprayed Cr3C2-rich binary hardmetal coatings (Cr3C2-42%WC-16%Ni and Cr3C2-37%WC-18%NiCoCr) with respect to the variation of their deposition parameters and compares them to a well established Cr3C2-25%NiCr coating. For each coating, a Wohler-like curve was constructed based on a failure criterion of sudden increase in impact crater volume. Besides, coatings deposition rate, residual stress, microstructure and hardness were evaluated. Differences in the coatings dynamic impact wear resistance was found, related to their residual stress. The failure mechanism and crack propagation mode are analyzed using SEM of impact surface and cross-sections. Deformation and related stress changes in coated systems during dynamic impact loading are described using FEA analyzes.

Název v anglickém jazyce

Dynamic Impact Wear Behavior of HVOF Sprayed Hardmetal Coatings

Popis výsledku anglicky

Thermally sprayed wear resistant coatings have proven their effectiveness in many applications. Their benefit is unquestionable in the case of mutual sliding contact or abrasive stress caused by hard particles. However, for the case of dynamic impact loading, either single or cyclic, the lifetime of different types of coatings is rarely described, probably due to the complex influence of many parameters. The paper deals with the evaluation of resistance to dynamic impact loading of two types of HVOF-sprayed Cr3C2-rich binary hardmetal coatings (Cr3C2-42%WC-16%Ni and Cr3C2-37%WC-18%NiCoCr) with respect to the variation of their deposition parameters and compares them to a well established Cr3C2-25%NiCr coating. For each coating, a Wohler-like curve was constructed based on a failure criterion of sudden increase in impact crater volume. Besides, coatings deposition rate, residual stress, microstructure and hardness were evaluated. Differences in the coatings dynamic impact wear resistance was found, related to their residual stress. The failure mechanism and crack propagation mode are analyzed using SEM of impact surface and cross-sections. Deformation and related stress changes in coated systems during dynamic impact loading are described using FEA analyzes.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/TH75020003" target="_blank" >TH75020003: Vývoj systémů „3D tisk-žárový nástřik“ pro dynamicky a cyklicky namáhané aplikace</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the ITSC 2024. Thermal Spray 2024: Proceedings from the International Thermal Spray Conference.

ISBN

978-3-96144-264-5

ISSN

—

e-ISSN

—

Počet stran výsledku

13

Strana od-do

580-593

Název nakladatele

DVS Media GhbH

Místo vydání

Düsseldorf

Místo konání akce

Milan, Italy

Datum konání akce

29. 4. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—