Wear behaviour of APS and HVOF sprayed ceramic coatings

Giovanni Bolelli; Valeria Cannillo; Erja Turunen; Tommi Varis; Teppo Fält; Simo-Pekka Hannula

Wear behaviour of APS and HVOF sprayed ceramic coatings

Giovanni Bolelli, Valeria Cannillo, Erja Turunen, Tommi Varis, Teppo Fält, Simo-Pekka Hannula

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen

Abstrakti

Plasma sprayed oxides are effective coatings against wear and corrosion. Low particle velocity in the plasma jet causes a limited interlamellar cohesion. HVOF-sprayed ceramic coatings emerged as an improved alternative. In this paper, microstructural characteristics and tribological performances of HVOF sprayed Al2O3, nanostructured Al2O3 and Cr2O3 coatings are compared to reference plasma-sprayed Al2O3 and Cr2O3. The microstructure is analysed by SEM, EDS and XRD. Hardness and fracture toughness are investigated by instrumented indentation and elastic modulus by 3-point bending. Steel wheel and rubber wheel tests have been used to assess dry particle abrasion resistance. Sliding wear resistance is tested by pin-on-disk at room temperature and at 400°C, against SiC and 100Cr6 steel balls. HVOF-sprayed coatings are denser and have better interlamellar cohesion thanks to increased particle velocity. They are harder, tougher, possess a higher elastic modulus and lower porosity. Dry particles abrasion resistance is definitely superior to plasma-sprayed ceramics due to higher toughness; sliding wear resistance is higher, particularly at 400°C.

Alkuperäiskieli	Englanti
Otsikko	Proceedings of the International Thermal Spray Conference, ITSC 2006
Alaotsikko	Building on 100 Years of Success
Toimittajat	Basil R. Marple, Margaret M. Hyland, Yuk-Chiu Lau, Rogerio S. Lima, Joel Voyer
Tila	Julkaistu - 2006
Julkaistu ulkoisesti	Kyllä
OKM-julkaisutyyppi	B3 Vertaisarvioimaton artikkeli konferenssijulkaisussa
Tapahtuma	International Thermal Spray Conference - Seattle, Yhdysvallat Kesto: 15 toukok. 2006 → 18 toukok. 2006

Conference

Conference	International Thermal Spray Conference
Maa/Alue	Yhdysvallat
Kaupunki	Seattle
Ajanjakso	15/05/06 → 18/05/06

Siteeraa tätä

@inproceedings{7c571269363e490d9b07a8539c1889d8,

title = "Wear behaviour of APS and HVOF sprayed ceramic coatings",

abstract = "Plasma sprayed oxides are effective coatings against wear and corrosion. Low particle velocity in the plasma jet causes a limited interlamellar cohesion. HVOF-sprayed ceramic coatings emerged as an improved alternative. In this paper, microstructural characteristics and tribological performances of HVOF sprayed Al2O3, nanostructured Al2O3 and Cr2O3 coatings are compared to reference plasma-sprayed Al2O3 and Cr2O3. The microstructure is analysed by SEM, EDS and XRD. Hardness and fracture toughness are investigated by instrumented indentation and elastic modulus by 3-point bending. Steel wheel and rubber wheel tests have been used to assess dry particle abrasion resistance. Sliding wear resistance is tested by pin-on-disk at room temperature and at 400°C, against SiC and 100Cr6 steel balls. HVOF-sprayed coatings are denser and have better interlamellar cohesion thanks to increased particle velocity. They are harder, tougher, possess a higher elastic modulus and lower porosity. Dry particles abrasion resistance is definitely superior to plasma-sprayed ceramics due to higher toughness; sliding wear resistance is higher, particularly at 400°C. ",

author = "Giovanni Bolelli and Valeria Cannillo and Erja Turunen and Tommi Varis and Teppo F{\"a}lt and Simo-Pekka Hannula",

year = "2006",

language = "English",

isbn = "978-087-17085-2-6",

editor = "Marple, {Basil R.} and Hyland, {Margaret M.} and Yuk-Chiu Lau and Lima, {Rogerio S.} and Joel Voyer",

booktitle = "Proceedings of the International Thermal Spray Conference, ITSC 2006",

note = "International Thermal Spray Conference ; Conference date: 15-05-2006 Through 18-05-2006",

}

Bolelli, G, Cannillo, V, Turunen, E, Varis, T, Fält, T & Hannula, S-P 2006, Wear behaviour of APS and HVOF sprayed ceramic coatings. julkaisussa BR Marple, MM Hyland, Y-C Lau, RS Lima & J Voyer (toim), Proceedings of the International Thermal Spray Conference, ITSC 2006: Building on 100 Years of Success. International Thermal Spray Conference, Seattle, Yhdysvallat, 15/05/06.

TY - GEN

T1 - Wear behaviour of APS and HVOF sprayed ceramic coatings

AU - Bolelli, Giovanni

AU - Cannillo, Valeria

AU - Turunen, Erja

AU - Varis, Tommi

AU - Fält, Teppo

AU - Hannula, Simo-Pekka

PY - 2006

Y1 - 2006

N2 - Plasma sprayed oxides are effective coatings against wear and corrosion. Low particle velocity in the plasma jet causes a limited interlamellar cohesion. HVOF-sprayed ceramic coatings emerged as an improved alternative. In this paper, microstructural characteristics and tribological performances of HVOF sprayed Al2O3, nanostructured Al2O3 and Cr2O3 coatings are compared to reference plasma-sprayed Al2O3 and Cr2O3. The microstructure is analysed by SEM, EDS and XRD. Hardness and fracture toughness are investigated by instrumented indentation and elastic modulus by 3-point bending. Steel wheel and rubber wheel tests have been used to assess dry particle abrasion resistance. Sliding wear resistance is tested by pin-on-disk at room temperature and at 400°C, against SiC and 100Cr6 steel balls. HVOF-sprayed coatings are denser and have better interlamellar cohesion thanks to increased particle velocity. They are harder, tougher, possess a higher elastic modulus and lower porosity. Dry particles abrasion resistance is definitely superior to plasma-sprayed ceramics due to higher toughness; sliding wear resistance is higher, particularly at 400°C.

AB - Plasma sprayed oxides are effective coatings against wear and corrosion. Low particle velocity in the plasma jet causes a limited interlamellar cohesion. HVOF-sprayed ceramic coatings emerged as an improved alternative. In this paper, microstructural characteristics and tribological performances of HVOF sprayed Al2O3, nanostructured Al2O3 and Cr2O3 coatings are compared to reference plasma-sprayed Al2O3 and Cr2O3. The microstructure is analysed by SEM, EDS and XRD. Hardness and fracture toughness are investigated by instrumented indentation and elastic modulus by 3-point bending. Steel wheel and rubber wheel tests have been used to assess dry particle abrasion resistance. Sliding wear resistance is tested by pin-on-disk at room temperature and at 400°C, against SiC and 100Cr6 steel balls. HVOF-sprayed coatings are denser and have better interlamellar cohesion thanks to increased particle velocity. They are harder, tougher, possess a higher elastic modulus and lower porosity. Dry particles abrasion resistance is definitely superior to plasma-sprayed ceramics due to higher toughness; sliding wear resistance is higher, particularly at 400°C.

M3 - Conference contribution

SN - 978-087-17085-2-6

BT - Proceedings of the International Thermal Spray Conference, ITSC 2006

A2 - Marple, Basil R.

A2 - Hyland, Margaret M.

A2 - Lau, Yuk-Chiu

A2 - Lima, Rogerio S.

A2 - Voyer, Joel

T2 - International Thermal Spray Conference

Y2 - 15 May 2006 through 18 May 2006

ER -

Wear behaviour of APS and HVOF sprayed ceramic coatings

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Conference

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