Electroless coating technology for 1060 aluminum alloy and the effect of tin chloride and polymer addition | ||||
| Egyptian Journal of Chemistry | ||||
| Volume 67, Issue 6, June 2024, Page 287-293 PDF (557.42 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2023.245952.8835 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Asmaa Hewedy1; Omyma Khalifa2; Aisha Kasab3; Saffaa Yehia Ahmed  4; Marwa Esmail5
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| 1Teaching assistant in Chemistry department, Faculty of Girls for Arts, Science and Education, Ain shams University, Cairo, Egypt | ||||
| 2Professor assistant in Chemistry department, Faculty of Girls for Arts, Science and Education, Ain shams University, Cairo, Egypt | ||||
| 3Professor assistant in Chemistry department, Faculty of Girls for Arts, Science and Education, Ain shams University, Cairo, Egypt | ||||
| 4Lecturer in Chemistry department, Faculty of Girls for Arts, Science and Education, Ain ‎shams University, Cairo, Egypt | ||||
| 5Lecturer in Chemistry department, Faculty of Girls for Arts, Science and Education, Ain Shams University, Cairo, Egypt | ||||
| Abstract | ||||
| The protection of metals against corrosion is one of the most crucial roles played by deposited coatings. In our research, electroless coating of Al alloy 1060 by Ni-Sn-P deposit and Ni-Sn-Polymer composite. Firstly, we coat Al alloy 1060 with a Ni-P layer as a reference to our work. Then coat Al alloy 1060 with Ni-Sn-P coating by using different concentrations of tin chloride. The best alloy of Ni-Sn-P is then used to produce the quaternary Ni-Sn-polymer composite. Also, we use different concentrations of polyvinyl pyrrolidone (M.Wt. 40,000). By using a scanning electron microscope (SEM), their surface morphology and microstructure were examined. The composition of the coat was analyzed using thin film and EDAX analysis. The corrosion resistance was studied by potentiodynamic polarization in 3.5g/l sodium chloride solution. Corrosion protection is increased for the ternary alloy as tin increases, and the corrosion protection of the quaternary alloy increases as polymer content increases in the coated bath. The corrosion resistance sequence of the different used coats is Ni-Sn-polymer > Ni-Sn-P > Ni-P. | ||||
| Keywords | ||||
| Al 1060; Electroless; Coating; Ni-P; Ni-Sn-P; and Ni-Sn-PVP composite &lrm | ||||
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