Investigation of friction behavior of TiO2: Al2O3 composite coating formed on AA2024 alloy by micro-arc oxidation

Emine Boynueğri Kaplan

Investigation of friction behavior of TiO2: Al2O3 composite coating formed on AA2024 alloy by micro-arc oxidation

Abstract

In this study, an alumina (Al2O3) ceramic coating and a composite coating containing tita-nium dioxide (TiO2) particles were prepared on surfaces of AA2024 substrates by micro-arc oxidation (MAO) treatment. The effects of micro-sized (≈20-30 µm) TiO2 particles incorpo-rated into electrolyte on the microstructure, phase and chemical composition, thickness, and friction behavior of the coating were investigated. The surface morphologies of the coatings were analyzed by scanning electron microscopy (SEM). The phase and chemical compositions of the coatings were evaluated by means of X-ray diffraction (XRD) and energy-dispersive X-ray spectrometry (EDS), respectively. The friction coefficient of the coatings was investi-gated using a pin-on-disc tribometer under condition of dry slip sliding. Moreover, the wear tracks were analyzed by SEM. Addition of TiO2 particles into the electrolyte resulted in the re-duction in number of pores and formation of smaller and more uniform pores in comparison with the Al2O3 ceramic coating. XRD analyses demonstrated that the TiO2:Al2O3 composite coating was composed of anatase-TiO2 and rutile-TiO2, as well as pure aluminum, α-Al2O3 and γ-Al2O3 which are the primary phases. The friction tests showed a significant reduction in the friction coefficient of the composite coated samples which contains titanium oxide (TiO2) particles in comparison with Al2O3 coated and uncoated samples.

Keywords

References

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Details

Primary Language

English

Subjects

Structural Biology

Journal Section

Research Article

Authors

Emine Boynueğri Kaplan ^* This is me
0000-0002-1131-0894
Türkiye

Publication Date

February 27, 2024

Submission Date

December 30, 2021

Acceptance Date

April 22, 2022

Published in Issue

Year 2024 Volume: 42 Number: 1

IZ

https://izlik.org/JA38AE66FM

Cite

RIS / Bibtex

APA

Boynueğri Kaplan, E. (2024). Investigation of friction behavior of TiO2: Al2O3 composite coating formed on AA2024 alloy by micro-arc oxidation. Sigma Journal of Engineering and Natural Sciences, 42(1), 63-89. https://izlik.org/JA38AE66FM

AMA

1.Boynueğri Kaplan E. Investigation of friction behavior of TiO2: Al2O3 composite coating formed on AA2024 alloy by micro-arc oxidation. SIGMA. 2024;42(1):63-89. https://izlik.org/JA38AE66FM

Chicago

Boynueğri Kaplan, Emine. 2024. “Investigation of Friction Behavior of TiO2: Al2O3 Composite Coating Formed on AA2024 Alloy by Micro-Arc Oxidation”. Sigma Journal of Engineering and Natural Sciences 42 (1): 63-89. https://izlik.org/JA38AE66FM.

EndNote

Boynueğri Kaplan E (February 1, 2024) Investigation of friction behavior of TiO2: Al2O3 composite coating formed on AA2024 alloy by micro-arc oxidation. Sigma Journal of Engineering and Natural Sciences 42 1 63–89.

IEEE

[1]E. Boynueğri Kaplan, “Investigation of friction behavior of TiO2: Al2O3 composite coating formed on AA2024 alloy by micro-arc oxidation”, SIGMA, vol. 42, no. 1, pp. 63–89, Feb. 2024, [Online]. Available: https://izlik.org/JA38AE66FM

ISNAD

Boynueğri Kaplan, Emine. “Investigation of Friction Behavior of TiO2: Al2O3 Composite Coating Formed on AA2024 Alloy by Micro-Arc Oxidation”. Sigma Journal of Engineering and Natural Sciences 42/1 (February 1, 2024): 63-89. https://izlik.org/JA38AE66FM.

JAMA

1.Boynueğri Kaplan E. Investigation of friction behavior of TiO2: Al2O3 composite coating formed on AA2024 alloy by micro-arc oxidation. SIGMA. 2024;42:63–89.

MLA

Boynueğri Kaplan, Emine. “Investigation of Friction Behavior of TiO2: Al2O3 Composite Coating Formed on AA2024 Alloy by Micro-Arc Oxidation”. Sigma Journal of Engineering and Natural Sciences, vol. 42, no. 1, Feb. 2024, pp. 63-89, https://izlik.org/JA38AE66FM.

Vancouver

1.Emine Boynueğri Kaplan. Investigation of friction behavior of TiO2: Al2O3 composite coating formed on AA2024 alloy by micro-arc oxidation. SIGMA [Internet]. 2024 Feb. 1;42(1):63-89. Available from: https://izlik.org/JA38AE66FM