Fe based (W,Ti)C EAS and WC-12Co HVOF sprayed coatings: microstructure, mechanical properties and micro-scale abrasion performance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00335890" target="_blank" >RIV/68407700:21230/19:00335890 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1088/2053-1591/ab3037" target="_blank" >https://doi.org/10.1088/2053-1591/ab3037</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/2053-1591/ab3037" target="_blank" >10.1088/2053-1591/ab3037</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fe based (W,Ti)C EAS and WC-12Co HVOF sprayed coatings: microstructure, mechanical properties and micro-scale abrasion performance

Popis výsledku v původním jazyce

The application of cermet material coatings deposited by thermal spray techniques such as high velocity oxy-fuel (HVOF) has not ceased expanding to many industrial fields, especially for protection of mechanical components and industrial parts against wear and corrosion. Recently, electric arc spray process (EAS), using cored wire as feed-stock, has been considered a step over HVOF technology thanks to its low effective cost and high deposition rate. In this work, the microstructure, hardness and abrasive wear performance of FeCrNiSiB-(W,Ti) Ccoatings deposited by EAS were compared with WC-12Co coating deposited byHVOFprocess. The microstructure of the feed stock material and deposited coatings as well as the mechanical properties of the deposited coatings were characterized by scanning electron microscopy/energy dispersive x-ray analysis (SEM/EDAX), x-ray diffraction (XRD) and micro-hardness measurements. The tribological properties were evaluated at room temperature in a micro-scale abrasion device. As expected, coatings exhibited different morphologies, i.e. WC-12Co HVOFcoating displayed a more homogeneous and dense microstructure, with low degree of carbide decomposition; whilst, FeCrNiSiB-(W,Ti) CEAS coatings showed an heterogeneous microstructure with more pronounced phase transformation. W-Cphase on the EAS coating was dissolved in the metallic matrix which leads to the formation of new and complex carbides. The wear rate of Fe based EAS coatings was just 1.9 times higher than the one ofHVOFcoating. Despite of this, Fe based-(W,Ti) CEAS coating offers a potential solution for surface protection of parts as compared toHVOFcoating, due to the lower production costs of the former.

Název v anglickém jazyce

Fe based (W,Ti)C EAS and WC-12Co HVOF sprayed coatings: microstructure, mechanical properties and micro-scale abrasion performance

Popis výsledku anglicky

The application of cermet material coatings deposited by thermal spray techniques such as high velocity oxy-fuel (HVOF) has not ceased expanding to many industrial fields, especially for protection of mechanical components and industrial parts against wear and corrosion. Recently, electric arc spray process (EAS), using cored wire as feed-stock, has been considered a step over HVOF technology thanks to its low effective cost and high deposition rate. In this work, the microstructure, hardness and abrasive wear performance of FeCrNiSiB-(W,Ti) Ccoatings deposited by EAS were compared with WC-12Co coating deposited byHVOFprocess. The microstructure of the feed stock material and deposited coatings as well as the mechanical properties of the deposited coatings were characterized by scanning electron microscopy/energy dispersive x-ray analysis (SEM/EDAX), x-ray diffraction (XRD) and micro-hardness measurements. The tribological properties were evaluated at room temperature in a micro-scale abrasion device. As expected, coatings exhibited different morphologies, i.e. WC-12Co HVOFcoating displayed a more homogeneous and dense microstructure, with low degree of carbide decomposition; whilst, FeCrNiSiB-(W,Ti) CEAS coatings showed an heterogeneous microstructure with more pronounced phase transformation. W-Cphase on the EAS coating was dissolved in the metallic matrix which leads to the formation of new and complex carbides. The wear rate of Fe based EAS coatings was just 1.9 times higher than the one ofHVOFcoating. Despite of this, Fe based-(W,Ti) CEAS coating offers a potential solution for surface protection of parts as compared toHVOFcoating, due to the lower production costs of the former.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

MATERIALS RESEARCH EXPRESS

ISSN

2053-1591

e-ISSN

—

Svazek periodika

6

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

16

Strana od-do

—

Kód UT WoS článku

000475909900001

EID výsledku v databázi Scopus

2-s2.0-85070638433