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

Kód výsledku v IS VaVaI

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Výsledek na webu

<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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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

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Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

J ENVIRON PROT ECOL

ISSN

1311-5065

e-ISSN

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Svazek periodika

20

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

BG - Bulharská republika

Počet stran výsledku

11

Strana od-do

1292-1302

Kód UT WoS článku

000497992700025

EID výsledku v databázi Scopus

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