TiN and TiCN Coated Stainless Steel 316 Ultrosonic Cavitation Probe for High Temperature Application
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Ultrasonic Cavitation Probe Assisted method in Stir Casting is used to produce metal matrix nano-composites (MMNCs) in bulk quantity with uniform distribution of nano particles. The uniform distribution of nano-particles is important aspect to enhance overall properties of composite materials. Here the ultrasonic waves are transferred to the casting mixture through ultrasonic horn (or) probe. During this process the thermal degradation of probe takes place, due to long period at high temperature, resulting in reduction of probe efficiency. Stainless steel 316 is taken as replacing material for existing super alloy probes like titanium and nickel based alloys for its valid properties and cost. The experiments are carried out to test the efficiency of the probe, without and with two different types of coatings such as TiN and TiCN on the SS 316 probe for various thickness using Physical Vapor Deposition (PVD) Technique. After coating on SS 316 various tests such as wear resistance, hardness, microstructure analysis, thermal conductivity and experimental analysis are done. The TiCN coating is more efficient than TiN coating.
KeywordsUltrosonic cavitation Coatings Wear Mechanical degradation
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