Fatigue behaviour of Plasma Sprayed Titania and Chromia Coatings

Cr2O3 and TiO2 powders were deposited by atmospheric plasma spray (APS) on steel substrates. Microstructural analysis of the coatings showed typical lamellar structure with good coating quality. Fatigue strength was studied by using cyclic testing (measuring with an inhouse-built apparatus the stren...

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Autores principales:	Koutsomichalis Angelos, Lontos Antonios, Loukas George, Vardavoulias Michalis, Vaxevanidis Nikolaos
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/52d65dc1fb5b49d0b4b67a42298a45b3
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spelling	oai:doaj.org-article:52d65dc1fb5b49d0b4b67a42298a45b32021-12-02T17:13:46ZFatigue behaviour of Plasma Sprayed Titania and Chromia Coatings2261-236X10.1051/matecconf/202134902009https://doaj.org/article/52d65dc1fb5b49d0b4b67a42298a45b32021-01-01T00:00:00Zhttps://www.matec-conferences.org/articles/matecconf/pdf/2021/18/matecconf_iceaf2021_02009.pdfhttps://doaj.org/toc/2261-236XCr2O3 and TiO2 powders were deposited by atmospheric plasma spray (APS) on steel substrates. Microstructural analysis of the coatings showed typical lamellar structure with good coating quality. Fatigue strength was studied by using cyclic testing (measuring with an inhouse-built apparatus the strength of the coated systems under a wide range of impact cycles) and static loading tests (Vickers tests standards with 600N and 1500N) measuring the adhesion properties of the coatings. In low cycles (1x103) Titania coatings exhibited better strength, while at intermediate (4.5x105) and high (1x106) number of impact cycles, both Chromia and Titania coatings exhibited quite similar strength characteristics. At low impact force the thickness of the coatings plays critical role with better performance obtained by Chromia coatings. During static loading both coatings exhibited similar characteristics at the crater diameter but with larger crater depth for Titania. Chromia coatings exhibited higher strength resistance than Titania coatings with better mechanical properties and coating structure.Koutsomichalis AngelosLontos AntoniosLoukas GeorgeVardavoulias MichalisVaxevanidis NikolaosEDP SciencesarticleEngineering (General). Civil engineering (General)TA1-2040ENFRMATEC Web of Conferences, Vol 349, p 02009 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Koutsomichalis Angelos Lontos Antonios Loukas George Vardavoulias Michalis Vaxevanidis Nikolaos Fatigue behaviour of Plasma Sprayed Titania and Chromia Coatings
description	Cr2O3 and TiO2 powders were deposited by atmospheric plasma spray (APS) on steel substrates. Microstructural analysis of the coatings showed typical lamellar structure with good coating quality. Fatigue strength was studied by using cyclic testing (measuring with an inhouse-built apparatus the strength of the coated systems under a wide range of impact cycles) and static loading tests (Vickers tests standards with 600N and 1500N) measuring the adhesion properties of the coatings. In low cycles (1x103) Titania coatings exhibited better strength, while at intermediate (4.5x105) and high (1x106) number of impact cycles, both Chromia and Titania coatings exhibited quite similar strength characteristics. At low impact force the thickness of the coatings plays critical role with better performance obtained by Chromia coatings. During static loading both coatings exhibited similar characteristics at the crater diameter but with larger crater depth for Titania. Chromia coatings exhibited higher strength resistance than Titania coatings with better mechanical properties and coating structure.
format	article
author	Koutsomichalis Angelos Lontos Antonios Loukas George Vardavoulias Michalis Vaxevanidis Nikolaos
author_facet	Koutsomichalis Angelos Lontos Antonios Loukas George Vardavoulias Michalis Vaxevanidis Nikolaos
author_sort	Koutsomichalis Angelos
title	Fatigue behaviour of Plasma Sprayed Titania and Chromia Coatings
title_short	Fatigue behaviour of Plasma Sprayed Titania and Chromia Coatings
title_full	Fatigue behaviour of Plasma Sprayed Titania and Chromia Coatings
title_fullStr	Fatigue behaviour of Plasma Sprayed Titania and Chromia Coatings
title_full_unstemmed	Fatigue behaviour of Plasma Sprayed Titania and Chromia Coatings
title_sort	fatigue behaviour of plasma sprayed titania and chromia coatings
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/52d65dc1fb5b49d0b4b67a42298a45b3
work_keys_str_mv	AT koutsomichalisangelos fatiguebehaviourofplasmasprayedtitaniaandchromiacoatings AT lontosantonios fatiguebehaviourofplasmasprayedtitaniaandchromiacoatings AT loukasgeorge fatiguebehaviourofplasmasprayedtitaniaandchromiacoatings AT vardavouliasmichalis fatiguebehaviourofplasmasprayedtitaniaandchromiacoatings AT vaxevanidisnikolaos fatiguebehaviourofplasmasprayedtitaniaandchromiacoatings
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Fatigue behaviour of Plasma Sprayed Titania and Chromia Coatings

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