Abstract
Lasma-sprayed thermal barrier coatings (TBCs) are gaining wide popularity and becoming more attractive for many industrial applications due to their high strength, thermal barrier/fatigue characteristics at elevated temperatures, resistance to chemical degradation, wear resistance, and environmental corrosion protection provided when coated on the surface of engineering components. To characterize the tribological properties of TBCs, a better understanding of their failure mechanisms and a thorough investigation of their performance are required. In this research, we used Taguchi-based grey relational analysis (GRA) to optimize the process parameters of various tribological characteristics of ceramic coatings applied via an atmospheric plasma spray process. Using Taguchi L16 factorial mixed-level experimental design, we also evaluated tribological characteristics such as wear loss and the coefficient of friction. Using GRA, we successfully performed a multiple output optimization and ranking of the control factors. Based on ANOVA results, we evaluated the significance of each process parameter and validated our findings in tests using the obtained optimum set of process parameters. Our study results will help to minimize wear loss and the coefficient of friction and to maximize TBC life.
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Mohammed YUNUS. He received the B.E. degree in mechanical engineering from Gulbarga University, India in 1997, received the M. Tech. degree in machine design from Visvesvaraiah Technological University, India in 2000, and received PhD degree in thermal and design engineering from Anna University, Chennai, India in 2012. He worked as Professor and PG Head in Thermal Engineering Department, HKBK College of Engineering, Bangalore, India for 2 years. Now, he is working as associate professor in Mechanical Engineering Department, College of Engineering and Islamic Architecture at Umm Al-Qura University for 2 years. He has published 65 technical papers in reputed international journals in different fields. His research areas are CFD, FEM, materials engineering, optimization, injection molding, TBC, surface characterization, and alternate fuels.
Mohammad S. ALSOUFI. He received the BSc degree in mechanical engineering from Umm Al-Qura University in 2004, and he received the MSc and PhD degrees in advanced mechanical engineering from Warwick University in the United Kingdom in 2007 and 2011, respectively. He worked as assistant professor in Mechanical Engineering Department, Collage of Engineering and Islamic Architecture at Umm Al-Qura University for four years. Now, he is working as associate professor in Mechanical Engineering Department, Collage of Engineering and Islamic Architecture at Umm Al-Qura University. His research areas are nano-technology, nano-tribology, nano-science, surface characterization, and measurements.
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Yunus, M., Alsoufi, M.S. Multi-output optimization of tribological characteristics control factors of thermally sprayed industrial ceramic coatings using hybrid Taguchi-grey relation analysis. Friction 4, 208–216 (2016). https://doi.org/10.1007/s40544-016-0118-6
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DOI: https://doi.org/10.1007/s40544-016-0118-6