Surface characteristics of plasma electrolytic oxidation coatings on Cp-Ti and hot-dip aluminised Cp-Ti

Cansu Celtik; Yakup Yurekturk; Ridvan Gecu; Cihan Kaboglu; Faiz Muhaffel

doi:10.1080/00202967.2022.2058108

Surface characteristics of plasma electrolytic oxidation coatings on Cp-Ti and hot-dip aluminised Cp-Ti

Cansu Celtik, Yakup Yurekturk^*, Ridvan Gecu, Cihan Kaboglu, Faiz Muhaffel

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

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

4 Citations (Scopus)

Abstract

Plasma electrolytic oxidation (PEO) coatings on commercial pure titanium (Cp-Ti) and hot-dip aluminised Cp-Ti surfaces were prepared in an alkaline electrolyte. The morphological, structural, wear, and corrosion characteristics of the coatings were studied by using SEM, EDS, XRD, electrochemical polarisation, and dry sliding wear tests. The experimental results showed that the main compositions of the PEO coating on Cp-Ti are TiO₂ and Al₂TiO₅ phases, while the PEO coating on hot-dip aluminised (HDA’ed) Cp-Ti mainly consists of the Al₂O₃ phase. The single PEO coating exhibited more porosity with small diameter micro-pores compared to the PEO coating on the HDA’ed sample. Electrochemical polarisation tests revealed that the PEO coating on the HDA'ed sample exhibited approximately 4.6 times more polarisation resistance than the single PEO coating and 10 times that of the bare Cp-Ti sample. According to the wear test results, the wear resistance of the bare Cp-Ti was doubled by hot-dip aluminising (HDA) and PEO treatments, while the single PEO treatment resulted in better resistance against dry sliding wear.

Original language	English
Pages (from-to)	159-165
Number of pages	7
Journal	Transactions of the Institute of Metal Finishing
Volume	100
Issue number	3
DOIs	https://doi.org/10.1080/00202967.2022.2058108
Publication status	Published - 2022

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Publisher Copyright:
© 2022 Institute of Materials Finishing Published by Taylor & Francis on behalf of the Institute.

Keywords

alumina
corrosion
plasma electrolytic oxidation
Titanium
tribological behaviour

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10.1080/00202967.2022.2058108

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title = "Surface characteristics of plasma electrolytic oxidation coatings on Cp-Ti and hot-dip aluminised Cp-Ti",

abstract = "Plasma electrolytic oxidation (PEO) coatings on commercial pure titanium (Cp-Ti) and hot-dip aluminised Cp-Ti surfaces were prepared in an alkaline electrolyte. The morphological, structural, wear, and corrosion characteristics of the coatings were studied by using SEM, EDS, XRD, electrochemical polarisation, and dry sliding wear tests. The experimental results showed that the main compositions of the PEO coating on Cp-Ti are TiO2 and Al2TiO5 phases, while the PEO coating on hot-dip aluminised (HDA{\textquoteright}ed) Cp-Ti mainly consists of the Al2O3 phase. The single PEO coating exhibited more porosity with small diameter micro-pores compared to the PEO coating on the HDA{\textquoteright}ed sample. Electrochemical polarisation tests revealed that the PEO coating on the HDA'ed sample exhibited approximately 4.6 times more polarisation resistance than the single PEO coating and 10 times that of the bare Cp-Ti sample. According to the wear test results, the wear resistance of the bare Cp-Ti was doubled by hot-dip aluminising (HDA) and PEO treatments, while the single PEO treatment resulted in better resistance against dry sliding wear.",

keywords = "alumina, corrosion, plasma electrolytic oxidation, Titanium, tribological behaviour",

author = "Cansu Celtik and Yakup Yurekturk and Ridvan Gecu and Cihan Kaboglu and Faiz Muhaffel",

note = "Publisher Copyright: {\textcopyright} 2022 Institute of Materials Finishing Published by Taylor & Francis on behalf of the Institute.",

year = "2022",

doi = "10.1080/00202967.2022.2058108",

language = "English",

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TY - JOUR

T1 - Surface characteristics of plasma electrolytic oxidation coatings on Cp-Ti and hot-dip aluminised Cp-Ti

AU - Celtik, Cansu

AU - Yurekturk, Yakup

AU - Gecu, Ridvan

AU - Kaboglu, Cihan

AU - Muhaffel, Faiz

PY - 2022

Y1 - 2022

N2 - Plasma electrolytic oxidation (PEO) coatings on commercial pure titanium (Cp-Ti) and hot-dip aluminised Cp-Ti surfaces were prepared in an alkaline electrolyte. The morphological, structural, wear, and corrosion characteristics of the coatings were studied by using SEM, EDS, XRD, electrochemical polarisation, and dry sliding wear tests. The experimental results showed that the main compositions of the PEO coating on Cp-Ti are TiO2 and Al2TiO5 phases, while the PEO coating on hot-dip aluminised (HDA’ed) Cp-Ti mainly consists of the Al2O3 phase. The single PEO coating exhibited more porosity with small diameter micro-pores compared to the PEO coating on the HDA’ed sample. Electrochemical polarisation tests revealed that the PEO coating on the HDA'ed sample exhibited approximately 4.6 times more polarisation resistance than the single PEO coating and 10 times that of the bare Cp-Ti sample. According to the wear test results, the wear resistance of the bare Cp-Ti was doubled by hot-dip aluminising (HDA) and PEO treatments, while the single PEO treatment resulted in better resistance against dry sliding wear.

AB - Plasma electrolytic oxidation (PEO) coatings on commercial pure titanium (Cp-Ti) and hot-dip aluminised Cp-Ti surfaces were prepared in an alkaline electrolyte. The morphological, structural, wear, and corrosion characteristics of the coatings were studied by using SEM, EDS, XRD, electrochemical polarisation, and dry sliding wear tests. The experimental results showed that the main compositions of the PEO coating on Cp-Ti are TiO2 and Al2TiO5 phases, while the PEO coating on hot-dip aluminised (HDA’ed) Cp-Ti mainly consists of the Al2O3 phase. The single PEO coating exhibited more porosity with small diameter micro-pores compared to the PEO coating on the HDA’ed sample. Electrochemical polarisation tests revealed that the PEO coating on the HDA'ed sample exhibited approximately 4.6 times more polarisation resistance than the single PEO coating and 10 times that of the bare Cp-Ti sample. According to the wear test results, the wear resistance of the bare Cp-Ti was doubled by hot-dip aluminising (HDA) and PEO treatments, while the single PEO treatment resulted in better resistance against dry sliding wear.

KW - alumina

KW - corrosion

KW - plasma electrolytic oxidation

KW - Titanium

KW - tribological behaviour

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Surface characteristics of plasma electrolytic oxidation coatings on Cp-Ti and hot-dip aluminised Cp-Ti

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