University Links: Home Page | Site Map
Covenant University Repository

Development of smart oxidation and corrosion resistance of multi-doped complex hybrid coatings on mild steel

Fayomi, O. S. I and Popoola, A. P. I. (2015) Development of smart oxidation and corrosion resistance of multi-doped complex hybrid coatings on mild steel. Journal of Alloys and Compounds. pp. 382-392.

[img] PDF
Download (2557Kb)

Abstract

The microstructure, mechanical and thermal treatment behavior of Zn–Al–SnO2/TiO2 (Zn–Al–Sn/Ti) produced through chloride deposition system was studied. 7.0–13.0 wt% TiO2 and SnO2 was added to chloride Zn–Al bath. A thermal treatment characteristic was done for 2 h at 200 �C, 400 �C and 600 �C. The ageing behaviors of the co-deposited alloys were evaluated using (SEM/EDS) and XRD. The hardness and wear value of the solid coatings were examined with micro-hardness and UMT-2 sliding tester respectively. The corrosion properties were investigated by linear polarization method in 3.65% NaCl environment. From the obtained results, the deposited alloys revealed excellent stability. The even distribution of the particulate on the produced coating and thermal-treatment were observed to cause the improvement on mechanical, tribological and electrochemical properties. The overall best coating was obtained at Zn–Al–7Sn–Ti–0.3V–Cl for as-coated and Zn–Al–7Sn–Ti–0.3V–Cl at 400 �C for the thermo-mechanical treated samples. The hardness, corrosion and micro-mechanical resistance performance against the working substrate were depended on the development of coherent and regular precipitation from the incorporated strengthening particulate.

Item Type: Article
Uncontrolled Keywords: Zn–Al–SnO2–TiO2 Composite Multifunctional deposition Interfacial interaction
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 05 Sep 2016 13:17
Last Modified: 05 Sep 2016 13:17
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/7102

Actions (login required)

View Item View Item