[Kovove materialy - Metallic materials]
    Thu - March 28, 2024 - 18:26 No. of hits : 1736451 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 48 (2010), Issue 3

A study on wear and corrosion behaviour of thermally sprayed alumina-titania composite coatings on aluminium alloys
MINDIVAN, H.
vol. 48 (2010), no. 3, pp. 203 - 210

Abstract
In this study, Al2O3 - 13TiO2 + 10 % polytetrafluoroethylene (PTFE) powders were sprayed using both flame and plasma spray processes after a NiAl bond layer was deposited on 2024-T6 aluminium alloy substrate. The characterization of the coatings was made by microscopic examinations, thickness, surface roughness, porosity and hardness measurements and X-ray diffraction (XRD) analysis. Corrosion and wear performances of the samples were analysed by using a potentiodynamic polarization scanning (PDS) technique and a reciprocating wear tester, respectively. It was found that the flame and plasma sprayed Al2O3 - 13TiO2 + 10 % PTFE coatings possessed about two and four times higher wear resistance than AA2024-T6 substrate, respectively. When compared to the flame sprayed Al2O3 - 13TiO2 + 10 % PTFE coating, the plasma sprayed Al2O3 - 13TiO2 + 10 % PTFE coating with a lower porosity showed higher hardness and better wear and corrosion resistance.

Key words
aluminium, coating, corrosion, thermal spray, wear

[open article.pdf] Full text (1239 KB)

[IMMS SAS]      UMMS SAV - Bratislava (SK) Personal data Protection   ver. 1.8.0      [go to HOME PAGE]
Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


Article abstracts updated: 2023-10-26 07:45      
Articles in press revised: 2024-03-26 11:42     
Full text pdf uploaded: 2023-11-08 06:53    
Information updated: 2023-04-19 16:14   
Code last revised: 2024-03-06 11:13  

© OldSoft, 2004, …, 2024