Wear of Gas-flame Composite Coatings with Tungsten and Nickel Matrix. Part II. Erosive Wear

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F19%3APU133915" target="_blank" >RIV/00216305:26210/19:PU133915 - isvavai.cz</a>

Result on the web

<a href="https://docs.google.com/a/jepe-journal.info/viewer?a=v&pid=sites&srcid=amVwZS1qb3VybmFsLmluZm98amVwZS1qb3VybmFsfGd4OjMxZWE0ZGViM2IzYjYyOGI" target="_blank" >https://docs.google.com/a/jepe-journal.info/viewer?a=v&pid=sites&srcid=amVwZS1qb3VybmFsLmluZm98amVwZS1qb3VybmFsfGd4OjMxZWE0ZGViM2IzYjYyOGI</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Wear of Gas-flame Composite Coatings with Tungsten and Nickel Matrix. Part II. Erosive Wear

Original language description

The object of the investigation is characterising the wear and wear resistance of composite powder coatings, deposited by supersonic flame stream (i.e. High Velocity Oxygen-Fuel (HVOF) spraying). Two groups of coatings have been obtained – powder composites of tungsten and nickel matrices, whereupon each group includes coatings having different sizes of the powder particles. The coatings have been tested in two cases – during abrasion and erosion. The research work consists of two parts. The first part represents the results on the characteristics of wear during dry friction on the surface with fixed attached abrasive particles. Results are presented here on the wearing of the coatings under the effect of air stream, carrying solid abrasive particles (erosion wear), more specifically – mass erosion wear, erosion rate, erosion intensity, absolute and relative wear resistance under identical conditions of erosion of the coatings. It has been found out that upon increasing the size of the particles 4 times from 11 to 45 μm in the case of coatings with tungsten matrix the wear resistance grows up 2.1 times, while in the case of coatings with nickel matrix the growth of the erosion resistance is insignificant – 1.2 times. The comparative results on the wear of the tested coatings during abrasion and erosion show different tendencies in the influence of the sizes on the wear and wear resistance. The abrasive wear resistance of the two kinds of coatings is greater in the case of smaller sizes of the powder particles. The same coatings in the case of erosion possess lower wear resistance, i.e. lower resistant ability under the impact effect of the abrasive particles in the air stream.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20301 - Mechanical engineering

Project

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Continuities

R - Projekt Ramcoveho programu EK

Publication year

2019

Confidentiality

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

Name of the periodical

J ENVIRON PROT ECOL

ISSN

1311-5065

e-ISSN

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Volume of the periodical

20

Issue of the periodical within the volume

3

Country of publishing house

BG - BULGARIA

Number of pages

11

Pages from-to

1292-1302

UT code for WoS article

000497992700025

EID of the result in the Scopus database

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