Influence of alumina and zirconia incorporations on the structure and wear resistance of titania-based MAO coatings

Faiz Muhaffel; Mertcan Kaba; Grzegorz Cempura; Bora Derin; Adam Kruk; Erdem Atar; Huseyin Cimenoglu

doi:10.1016/j.surfcoat.2019.124900

Influence of alumina and zirconia incorporations on the structure and wear resistance of titania-based MAO coatings

Faiz Muhaffel, Mertcan Kaba, Grzegorz Cempura, Bora Derin, Adam Kruk, Erdem Atar, Huseyin Cimenoglu^*

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

67 Citations (Scopus)

Abstract

In the present work, the influence of alumina (Al₂O₃) and zirconia (ZrO₂) incorporation on the structural properties and wear resistance of titania (TiO₂) based micro-arc oxidation (MAO) coatings fabricated on Ti6Al4V alloy was studied. For this purpose MAO was employed in a silicate-based electrolyte with and without additions of Al₂O₃ and ZrO₂ particles. The structural properties were determined via X-ray diffraction (XRD) and X-ray photoelectron (XPS) spectroscopy analysis and an energy dispersive spectrometer (EDS) equipped scanning electron microscope (SEM). Furthermore, thermochemical simulations were made by using FactSage 7.3. Mechanical properties of the MAO coatings were determined by hardness measurements and dry sliding reciprocating wear tests. Structural examinations revealed that the MAO coatings fabricated in Al₂O₃ and ZrO₂ added electrolytes comprised of these oxides and their complex forms (Al₂TiO₅ and ZrTiO₄, respectively) along with TiO₂ and amorphous silica (SiO₂). Although incorporations of Al₂O₃ and ZrO₂ did not remarkably improve the hardness of the MAO coatings, the highest wear resistance was obtained from the one formed in the ZrO₂ added electrolyte. On the other hand, the MAO coating fabricated in the Al₂O₃ added electrolyte exhibited lower wear resistance than that of fabricated in the particle-free silicate-based electrolyte.

Original language	English
Article number	124900
Journal	Surface and Coatings Technology
Volume	377
DOIs	https://doi.org/10.1016/j.surfcoat.2019.124900
Publication status	Published - 15 Nov 2019

Bibliographical note

Publisher Copyright:
© 2019 Elsevier B.V.

Funding

Mr. F. Muhaffel would like to thank The Scientific and Technological Research Council of Turkey (TUBITAK) for its financial support through the BIDEB Programme No. 2211-A. The authors gratefully acknowledge the financial support of Istanbul Technical University Scientific Research Projects (ITU-BAP, Grant No. 38557) and European Union Seventh Framework Programme under Grant Agreement project No. 312483–ESTEEM2. Dr. B. Derin would like to thank GTT-Technologies for their valuable contributions and assistance in guiding FactSage calculations. Technical support of Dr. Asad Ali Dilawary is highly appreciated. Mr. F. Muhaffel would like to thank The Scientific and Technological Research Council of Turkey (TUBITAK) for its financial support through the BIDEB Programme No. 2211-A . The authors gratefully acknowledge the financial support of Istanbul Technical University Scientific Research Projects (ITU-BAP, Grant No. 38557 ) and European Union Seventh Framework Programme under Grant Agreement project No. 312483 –ESTEEM2. Dr. B. Derin would like to thank GTT-Technologies for their valuable contributions and assistance in guiding FactSage calculations. Technical support of Dr. Asad Ali Dilawary is highly appreciated.

Funders	Funder number
GTT-Technologies
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu	2211-A
Seventh Framework Programme	312483
Istanbul Teknik Üniversitesi
Bilimsel Araştırma Projeleri Birimi, İstanbul Teknik Üniversitesi	38557

Keywords

Friction
Micro-arc oxidation
Oxide coating
Titanium alloy
Wear

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title = "Influence of alumina and zirconia incorporations on the structure and wear resistance of titania-based MAO coatings",

abstract = "In the present work, the influence of alumina (Al2O3) and zirconia (ZrO2) incorporation on the structural properties and wear resistance of titania (TiO2) based micro-arc oxidation (MAO) coatings fabricated on Ti6Al4V alloy was studied. For this purpose MAO was employed in a silicate-based electrolyte with and without additions of Al2O3 and ZrO2 particles. The structural properties were determined via X-ray diffraction (XRD) and X-ray photoelectron (XPS) spectroscopy analysis and an energy dispersive spectrometer (EDS) equipped scanning electron microscope (SEM). Furthermore, thermochemical simulations were made by using FactSage 7.3. Mechanical properties of the MAO coatings were determined by hardness measurements and dry sliding reciprocating wear tests. Structural examinations revealed that the MAO coatings fabricated in Al2O3 and ZrO2 added electrolytes comprised of these oxides and their complex forms (Al2TiO5 and ZrTiO4, respectively) along with TiO2 and amorphous silica (SiO2). Although incorporations of Al2O3 and ZrO2 did not remarkably improve the hardness of the MAO coatings, the highest wear resistance was obtained from the one formed in the ZrO2 added electrolyte. On the other hand, the MAO coating fabricated in the Al2O3 added electrolyte exhibited lower wear resistance than that of fabricated in the particle-free silicate-based electrolyte.",

keywords = "Friction, Micro-arc oxidation, Oxide coating, Titanium alloy, Wear",

author = "Faiz Muhaffel and Mertcan Kaba and Grzegorz Cempura and Bora Derin and Adam Kruk and Erdem Atar and Huseyin Cimenoglu",

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T1 - Influence of alumina and zirconia incorporations on the structure and wear resistance of titania-based MAO coatings

AU - Muhaffel, Faiz

AU - Kaba, Mertcan

AU - Cempura, Grzegorz

AU - Derin, Bora

AU - Kruk, Adam

AU - Atar, Erdem

AU - Cimenoglu, Huseyin

PY - 2019/11/15

Y1 - 2019/11/15

N2 - In the present work, the influence of alumina (Al2O3) and zirconia (ZrO2) incorporation on the structural properties and wear resistance of titania (TiO2) based micro-arc oxidation (MAO) coatings fabricated on Ti6Al4V alloy was studied. For this purpose MAO was employed in a silicate-based electrolyte with and without additions of Al2O3 and ZrO2 particles. The structural properties were determined via X-ray diffraction (XRD) and X-ray photoelectron (XPS) spectroscopy analysis and an energy dispersive spectrometer (EDS) equipped scanning electron microscope (SEM). Furthermore, thermochemical simulations were made by using FactSage 7.3. Mechanical properties of the MAO coatings were determined by hardness measurements and dry sliding reciprocating wear tests. Structural examinations revealed that the MAO coatings fabricated in Al2O3 and ZrO2 added electrolytes comprised of these oxides and their complex forms (Al2TiO5 and ZrTiO4, respectively) along with TiO2 and amorphous silica (SiO2). Although incorporations of Al2O3 and ZrO2 did not remarkably improve the hardness of the MAO coatings, the highest wear resistance was obtained from the one formed in the ZrO2 added electrolyte. On the other hand, the MAO coating fabricated in the Al2O3 added electrolyte exhibited lower wear resistance than that of fabricated in the particle-free silicate-based electrolyte.

AB - In the present work, the influence of alumina (Al2O3) and zirconia (ZrO2) incorporation on the structural properties and wear resistance of titania (TiO2) based micro-arc oxidation (MAO) coatings fabricated on Ti6Al4V alloy was studied. For this purpose MAO was employed in a silicate-based electrolyte with and without additions of Al2O3 and ZrO2 particles. The structural properties were determined via X-ray diffraction (XRD) and X-ray photoelectron (XPS) spectroscopy analysis and an energy dispersive spectrometer (EDS) equipped scanning electron microscope (SEM). Furthermore, thermochemical simulations were made by using FactSage 7.3. Mechanical properties of the MAO coatings were determined by hardness measurements and dry sliding reciprocating wear tests. Structural examinations revealed that the MAO coatings fabricated in Al2O3 and ZrO2 added electrolytes comprised of these oxides and their complex forms (Al2TiO5 and ZrTiO4, respectively) along with TiO2 and amorphous silica (SiO2). Although incorporations of Al2O3 and ZrO2 did not remarkably improve the hardness of the MAO coatings, the highest wear resistance was obtained from the one formed in the ZrO2 added electrolyte. On the other hand, the MAO coating fabricated in the Al2O3 added electrolyte exhibited lower wear resistance than that of fabricated in the particle-free silicate-based electrolyte.

KW - Friction

KW - Micro-arc oxidation

KW - Oxide coating

KW - Titanium alloy

KW - Wear

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Influence of alumina and zirconia incorporations on the structure and wear resistance of titania-based MAO coatings

Abstract

Bibliographical note

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Keywords

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