The Department of Materials Engineering at the University of Technology awarded a master’s degree to the student Morooj Muhammad Shniar, Department of Materials Engineering/ University of Technology, for her thesis entitled .
Study of the corrosion behavior of coating nanocomposites on a metal substrate.
"Study of Corrosion Behavior of Nanocomposite Coating on Metallic Substrate"
The discussion took place in the Graduate Studies Hall in Building B in the department on Thursday, 4/11/2021, and the discussion committee consisted of The following ladies and Gentlemen
1. Prof.Dr Emad Saadi Abdel Karim, President
2. Prof.Dr Basem Ajeel Abbas, member
3. A.sst.Prof.Dr. NevinJamal Abdel Qader is a member
4. Prof.Dr Abbas Khammas Hussein, an honorable member
5. Asst.Prof.Dr. Laith Qais Abbas is an honorable member
As well as evaluating the message scientifically by Asst.Prof.Dr. Khaleda Farhan Hussein/ University of Technology/ Department of Applied Sciences and Asst.Prof. Dr Naba'a Sattar Radi/ Babylon University/ College of Materials Engineering/ Department of Materials Engineering, and linguistically by Lect.Dr Naseer Abdul-Hussein Nasser/ University of Technology/ Department of Materials Engineering
After the discussion committee recorded its observations on the thesis, which were divided between explanation, correction, and the student’s defense of her Thesis and the discussion ended, the committee decided to Accept the thesis, and decided to grant the student a master’s degree with a Pass grade
Abstract:
The main purpose of this work is compare the effects of incorporation of (TiO2, Al2O3 and SiO2) nanoparticles on the phase structure, microstructure, and morphology of the nanocomposite coatings synthesized by electroless deposition technique. a design of experiments (DOE), the desirability-based Taguchi orthogonal array (OA), is designed and the influence of the factors are evaluated using analysis of variance (ANOVA). Desirability functions have been used for single optimization and multi-response optimization (multi-objective optimization). According to the single optimization results, the optimal parameters of (EN) coating process are (corrosion rate (0.120 mmpy), Nano material (SiO2), bath temperature (80°C), plating time (40min.), microhardness (516.2667 HV), bath temperature (100 °C), plating time (120 min.). From (ANOVA) results, it is observed that the Nano material has the most significance effect on the composite desirability of (EN) coating. (SEM) characterization showed that the surface of (EN) coatings is smooth, low porosity, and dense. Corrosion measurements have proven that the corrosion resistance of low carbon steel increases with the presence of (SiO2) Nano-particle.
