Dynamic Impact Wear Behavior of HVOF Sprayed Hardmetal Coatings

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Dynamic Impact Wear Behavior of HVOF Sprayed Hardmetal Coatings
Original language description
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.
Czech name
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Czech description
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Project
<a href="/en/project/TH75020003" target="_blank" >TH75020003: Development of “3D print-thermal spray” systems for dynamically and cyclically loaded applications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the ITSC 2024. Thermal Spray 2024: Proceedings from the International Thermal Spray Conference.
ISBN
978-3-96144-264-5
ISSN
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e-ISSN
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Number of pages
13
Pages from-to
580-593
Publisher name
DVS Media GhbH
Place of publication
Düsseldorf
Event location
Milan, Italy
Event date
Apr 29, 2024
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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