Effect of thermal treatment on the interfacial reaction, microstructural and mechanical properties of Zn-Al-SnO2/TiO2 functional coating alloys

O. S.I. Fayomi; A. P.I. Popoola; V. S. Aigbodion

doi:10.1016/j.jallcom.2014.07.141

Effect of thermal treatment on the interfacial reaction, microstructural and mechanical properties of Zn-Al-SnO₂/TiO₂ functional coating alloys

O. S.I. Fayomi, A. P.I. Popoola, V. S. Aigbodion

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

29 Citations (Scopus)

Abstract

In this paper, the microstructure and thermal treatment behavior of Zn-Al-SnO₂/TiO₂(Zn-Al-Sn/Ti) produced through co-deposition route was investigated. 7.0-13.0 wt% TiO₂ and SnO ₂ was added to Zn-Al bath. Thermal treatment was done for 2 h at 200 °C, 400 °C and 600 °C. The ageing characteristics of the coated alloys were evaluated using (SEM/EDS) and XRD. The hardness and wear value of the thin film were examined with micro-hardness and UMT-2 sliding tester respectively. The corrosion properties were evaluated by linear polarization in 3.65% NaCl. From the result obtained, the coating exhibited good stability. The uniform distribution of the composites on the fabricated alloy and age-treatment were the major factor responsible for the mechanical and electrochemical improvement. The optimum value was obtained at Zn-Al-7Sn-Ti-0.3V-S for as-coated and Zn-Al-7Sn-Ti-0.3V-S at 400 °C for the thermal-aged samples. The stabilities in hardness and corrosion resistance against the working substrate were attributed to the formation of coherent and uniform precipitation in the metal lattice.

Original language	English
Pages (from-to)	455-463
Number of pages	9
Journal	Journal of Alloys and Compounds
Volume	617
DOIs	https://doi.org/10.1016/j.jallcom.2014.07.141
Publication status	Published - 25 Dec 2014
Externally published	Yes

Keywords

Chemical interaction
Co-deposition
Composite-reinforcement
Microstructures
Thermal treatment
Wear

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2014.07.141

Cite this

@article{bfa25119b0744dc392af31f9b4e23bc7,

title = "Effect of thermal treatment on the interfacial reaction, microstructural and mechanical properties of Zn-Al-SnO2/TiO2 functional coating alloys",

abstract = "In this paper, the microstructure and thermal treatment behavior of Zn-Al-SnO2/TiO2(Zn-Al-Sn/Ti) produced through co-deposition route was investigated. 7.0-13.0 wt% TiO2 and SnO 2 was added to Zn-Al bath. Thermal treatment was done for 2 h at 200 °C, 400 °C and 600 °C. The ageing characteristics of the coated alloys were evaluated using (SEM/EDS) and XRD. The hardness and wear value of the thin film were examined with micro-hardness and UMT-2 sliding tester respectively. The corrosion properties were evaluated by linear polarization in 3.65% NaCl. From the result obtained, the coating exhibited good stability. The uniform distribution of the composites on the fabricated alloy and age-treatment were the major factor responsible for the mechanical and electrochemical improvement. The optimum value was obtained at Zn-Al-7Sn-Ti-0.3V-S for as-coated and Zn-Al-7Sn-Ti-0.3V-S at 400 °C for the thermal-aged samples. The stabilities in hardness and corrosion resistance against the working substrate were attributed to the formation of coherent and uniform precipitation in the metal lattice.",

keywords = "Chemical interaction, Co-deposition, Composite-reinforcement, Microstructures, Thermal treatment, Wear",

author = "Fayomi, {O. S.I.} and Popoola, {A. P.I.} and Aigbodion, {V. S.}",

year = "2014",

month = dec,

day = "25",

doi = "10.1016/j.jallcom.2014.07.141",

language = "English",

volume = "617",

pages = "455--463",

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AU - Fayomi, O. S.I.

AU - Popoola, A. P.I.

AU - Aigbodion, V. S.

PY - 2014/12/25

Y1 - 2014/12/25

N2 - In this paper, the microstructure and thermal treatment behavior of Zn-Al-SnO2/TiO2(Zn-Al-Sn/Ti) produced through co-deposition route was investigated. 7.0-13.0 wt% TiO2 and SnO 2 was added to Zn-Al bath. Thermal treatment was done for 2 h at 200 °C, 400 °C and 600 °C. The ageing characteristics of the coated alloys were evaluated using (SEM/EDS) and XRD. The hardness and wear value of the thin film were examined with micro-hardness and UMT-2 sliding tester respectively. The corrosion properties were evaluated by linear polarization in 3.65% NaCl. From the result obtained, the coating exhibited good stability. The uniform distribution of the composites on the fabricated alloy and age-treatment were the major factor responsible for the mechanical and electrochemical improvement. The optimum value was obtained at Zn-Al-7Sn-Ti-0.3V-S for as-coated and Zn-Al-7Sn-Ti-0.3V-S at 400 °C for the thermal-aged samples. The stabilities in hardness and corrosion resistance against the working substrate were attributed to the formation of coherent and uniform precipitation in the metal lattice.

AB - In this paper, the microstructure and thermal treatment behavior of Zn-Al-SnO2/TiO2(Zn-Al-Sn/Ti) produced through co-deposition route was investigated. 7.0-13.0 wt% TiO2 and SnO 2 was added to Zn-Al bath. Thermal treatment was done for 2 h at 200 °C, 400 °C and 600 °C. The ageing characteristics of the coated alloys were evaluated using (SEM/EDS) and XRD. The hardness and wear value of the thin film were examined with micro-hardness and UMT-2 sliding tester respectively. The corrosion properties were evaluated by linear polarization in 3.65% NaCl. From the result obtained, the coating exhibited good stability. The uniform distribution of the composites on the fabricated alloy and age-treatment were the major factor responsible for the mechanical and electrochemical improvement. The optimum value was obtained at Zn-Al-7Sn-Ti-0.3V-S for as-coated and Zn-Al-7Sn-Ti-0.3V-S at 400 °C for the thermal-aged samples. The stabilities in hardness and corrosion resistance against the working substrate were attributed to the formation of coherent and uniform precipitation in the metal lattice.

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KW - Co-deposition

KW - Composite-reinforcement

KW - Microstructures

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KW - Wear

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