|About this Abstract
||Materials Science & Technology 2019
||Advanced Manufacturing, Processing, Characterization and Modeling of Functional Materials
||P2-39: Effects of Cooling Rate and Ti Addition on Microstructure, Mechanical Properties and Corrosion Characteristics of Laser Deposited Ti-6Al-4V Alloy
||Olawale Samuel Fatoba, Esther Akinlabi, Stephen Akinlabi, Omolayo Ikumapayi
|On-Site Speaker (Planned)
Materials solution to premature failures induced by corrosion and wear phenomena is simply the fabrication of coatings with superior chemical and mechanical properties than the parent material. The quality of deposited coatings depends on the melting, cooling and solidification of the melt pool. This paper focuses on the effect of hybrid coatings Al-Cu-Ti/Ti-6Al-4V composite using laser metal deposition (LMD) technique. The cross-sectional view of the cladded layer showed a uniform crack free surface due to optimized parameters which led to the refinement of the coatings. The hardness of the coated samples was enhanced significantly. Moreover, the coated samples showed enhanced corrosion resistance in 5M NaCl environment compared to the base metal. Decreased content of aluminium and increase amount of titanium favour the chemical performance of the composite thereby enhancing the mechanical and corrosion properties. Genetic Algorithm (GA) and COMSOL multi-physics models were used to validate the experimental results.