Wear behaviour of APS and HVOF sprayed ceramic coatings

G. Bolelli, V. Cannillo, L. Lusvarghi, Erja Turunen, Tommi Varis, Teppo Fält, Simo-Pekka Hannula

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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.
Original languageEnglish
Title of host publicationProceedings of the International Thermal Spray Conference
Subtitle of host publicationThermal Spray 2006
PublisherASM International
Number of pages6
ISBN (Print)978-087-17085-2-6
Publication statusPublished - 2006
MoE publication typeA4 Article in a conference publication
EventInternational Thermal Spray Conference, ITSC 2006 - Seattle, United States
Duration: 15 May 200618 May 2006

Conference

ConferenceInternational Thermal Spray Conference, ITSC 2006
CountryUnited States
CitySeattle
Period15/05/0618/05/06

Fingerprint

Ceramic coatings
Sprayed coatings
Wear resistance
Wear of materials
Plasmas
Wheels
Elastic moduli
Coatings
Plasma jets
Steel
Indentation
Toughness
Fracture toughness
Energy dispersive spectroscopy
Rubber
Porosity
Hardness
Corrosion
Microstructure
Scanning electron microscopy

Cite this

Bolelli, G., Cannillo, V., Lusvarghi, L., Turunen, E., Varis, T., Fält, T., & Hannula, S-P. (2006). Wear behaviour of APS and HVOF sprayed ceramic coatings. In Proceedings of the International Thermal Spray Conference: Thermal Spray 2006 ASM International.
Bolelli, G. ; Cannillo, V. ; Lusvarghi, L. ; Turunen, Erja ; Varis, Tommi ; Fält, Teppo ; Hannula, Simo-Pekka. / Wear behaviour of APS and HVOF sprayed ceramic coatings. Proceedings of the International Thermal Spray Conference: Thermal Spray 2006. ASM International, 2006.
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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.",
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Bolelli, G, Cannillo, V, Lusvarghi, L, Turunen, E, Varis, T, Fält, T & Hannula, S-P 2006, Wear behaviour of APS and HVOF sprayed ceramic coatings. in Proceedings of the International Thermal Spray Conference: Thermal Spray 2006. ASM International, International Thermal Spray Conference, ITSC 2006, Seattle, United States, 15/05/06.

Wear behaviour of APS and HVOF sprayed ceramic coatings. / Bolelli, G.; Cannillo, V.; Lusvarghi, L.; Turunen, Erja; Varis, Tommi; Fält, Teppo; Hannula, Simo-Pekka.

Proceedings of the International Thermal Spray Conference: Thermal Spray 2006. ASM International, 2006.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

TY - GEN

T1 - Wear behaviour of APS and HVOF sprayed ceramic coatings

AU - Bolelli, G.

AU - Cannillo, V.

AU - Lusvarghi, L.

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 article in proceedings

SN - 978-087-17085-2-6

BT - Proceedings of the International Thermal Spray Conference

PB - ASM International

ER -

Bolelli G, Cannillo V, Lusvarghi L, Turunen E, Varis T, Fält T et al. Wear behaviour of APS and HVOF sprayed ceramic coatings. In Proceedings of the International Thermal Spray Conference: Thermal Spray 2006. ASM International. 2006