In-situ hybrid study of thermal behaviour of Zn-Ni and Zn-Ni-Al2O3 nanocrystallite thin films induced TEA/MEA by electrocodeposition

被引:3
作者
Abdulwahab, M. [1 ,2 ]
Fayomi, O. S. I. [1 ,3 ]
Popoola, A. P. I. [1 ]
Dodo, M. R. [2 ]
机构
[1] Tshwane Univ Technol, Dept Chem Met & Mat Engn, Pretoria, South Africa
[2] Ahmadu Bello Univ, Dept Met & Mat Engn, Zaria, Nigeria
[3] Covenant Univ, Dept Mech Engn, Ota, Ogun State, Nigeria
基金
新加坡国家研究基金会;
关键词
Thermal stability; Thin films; Oxidation; Scaling; Grain growth; MILD-STEEL; COATINGS; NICKEL;
D O I
10.1016/j.rinp.2016.11.017
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Our present investigation focuses on the thermal stability of already developed electroforms of Zn-Ni and Zn-Ni-Al2O3 thin films induced with triethylamine (TEA) and monoethylamine (MEA) as surfactant by electrocodeposition on mild steel substrate with the aim to re-examine its micro-hardness and degradation behaviour in static sodium chloride solution. In the event, the samples were thermally treated at 200 degrees C and air cooled. The results obtained showed that the developed composites are thermally stable with hardness value of the Zn-Ni-Al2O3 coated; 185 Hv increased to 190.5 Hv indicating a 2.89% improvement. Noticeably, in the Zn-Ni coatings, a decrease in the hardness with 26.67% was observed. The oxidation resistance was however favored for both composites. (C) 2016 Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license
引用
收藏
页码:213 / 215
页数:3
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