Journal Press India^®

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This paper aims to comprehensively review recent advancements in wear-resistant HVOF coatings for gas turbine components. It explores diverse thermal spray processes, including oxy-fuel methods on steel shafts, assessing their life in compensating for wear. The study also examines challenges related to wear, degradation, and erosion in gas turbine superalloys, particularly in critical components like combustion liners and blades. Notably, real-world performance is highlighted through a case study involving a chromium-carbide-based coating on a gas turbine combustor liner, showcasing increased hardness and minimized wear scars under severe conditions. The overarching objective is to enhance knowledge in gas turbine technology by providing a comprehensive overview of these advancements and their applications in addressing wear-related challenges. This comprehensive review delves into various studies and advancements aimed at mitigating wear and degradation in essential components through the application of specialized coatings.

Keywords

HVOF, Wear, Gas turbine components, shaft, blade, Combustion liner

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