Article ID Journal Published Year Pages File Type
1609512 Journal of Alloys and Compounds 2015 11 Pages PDF
Abstract

•The structure and thermal treatment properties of chloride Zn–Al–SnO2–TiO2 (Zn–Al–Sn/Ti).•Thermal evaluation for 2 h at 200 °C, 400 °C and 600 °C.•The coatings were evaluated using AFM, SEM/EDS and XRD, the hardness and wear.•The best alloy value was obtained at Zn–Al–7Sn–Ti–0.3V–Cl system.•Zn–Al–7Sn–Ti–0.3V–Cl at 600 °C for the thermal-corrosion samples.

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.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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