Influence of ball material on the resulting fatigue life of thermal sprayed HVOF coatings in dynamic impact testing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F24%3A00583061" target="_blank" >RIV/68081731:_____/24:00583061 - isvavai.cz</a>

Alternative codes found

RIV/47718684:_____/23:10001783 RIV/47718684:_____/24:10002311

Result on the web

<a href="https://www.confer.cz/metal/2023/4716-influence-of-ball-material-on-the-resulting-fatigue-life-of-thermal-sprayed-hvof-coatings-in-dynamic-impact-testing" target="_blank" >https://www.confer.cz/metal/2023/4716-influence-of-ball-material-on-the-resulting-fatigue-life-of-thermal-sprayed-hvof-coatings-in-dynamic-impact-testing</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/metal.2023.4716" target="_blank" >10.37904/metal.2023.4716</a>

Result language

angličtina

Original language name

Influence of ball material on the resulting fatigue life of thermal sprayed HVOF coatings in dynamic impact testing

Original language description

Dynamic impact wear, i.e. contact between two components in the presence of high cyclic local loads, is a challenging failure mode that occurs in many mechanical applications. Many previous studies have confirmed that dynamic impact testing is suitable for evaluating the contact fatigue of thermal sprayed coatings. However, the effect of the test parameters on the resulting lifetime is unclear. The aim of this study describes the effect of the ball material used in the dynamic impact test on the resulting fatigue life of the HVOF thermal sprayed coating. Three test balls made of WC/Co alloy, Si3N4 silicon nitride and 440 C steel were chosen for this study. Dynamic impaction testing was carried out on the Cr3C2-NiCr coating, which was sprayed by HVOF on a 1.2376 high-speed steel substrate. The impact lifetime was described by the number of critical impacts, i.e. the number of impacts before coating fatigue occurs. Furthermore, the depth and volume of impact craters were measured. Using scanning electron microscopy (SEM), the surface of the impacts as well as the microstructure of the coating on the cross-section in the region of the impacts were observed. Furthermore, the mechanism of crack propagation in the coating and the microstructure of the indentor were investigated.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20506 - Coating and films

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Article name in the collection

METAL 2023. 32nd International Conference on Metallurgy and Materials. Conference Proceedings

ISBN

978-80-88365-12-9

ISSN

2694-9296

e-ISSN

—

Number of pages

6

Pages from-to

439-444

Publisher name

TANGER

Place of publication

Ostrava

Event location

Brno

Event date

May 17, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

001242776200065