Development of High-Temperature Corrosion-Resistant Coatings for Gas Turbine Components

Thesis Abstract

Abstract
The demand for enhanced performance and longevity of gas turbine components under high-temperature operating conditions has led to the exploration of advanced materials and coatings. This thesis focuses on the development of high-temperature corrosion-resistant coatings for gas turbine components to address the challenges associated with oxidative degradation and material loss. The research involved a comprehensive investigation into the properties and performance of various coating materials, deposition techniques, and corrosion resistance mechanisms. The study begins with a detailed introduction outlining the background of the research, the problem statement, research objectives, limitations, scope, significance, structure of the thesis, and definitions of key terms. A thorough literature review in Chapter Two explores existing knowledge on high-temperature coatings, corrosion mechanisms, material properties, and coating technologies. This chapter provides a foundation for understanding the current state of the art and identifies gaps in the research that this study aims to address. Chapter Three presents the research methodology employed in this study, covering aspects such as sample preparation, coating deposition techniques, experimental setup, corrosion testing procedures, and characterization methods. The methodology section outlines the systematic approach used to investigate the corrosion resistance and performance of the developed coatings under high-temperature conditions. In Chapter Four, the findings of the study are discussed comprehensively, including analyses of coating properties, corrosion resistance mechanisms, microstructural changes, and performance evaluation under simulated gas turbine operating conditions. The results highlight the effectiveness of the developed coatings in minimizing material degradation and enhancing the lifespan of gas turbine components subjected to high-temperature environments. Finally, Chapter Five presents a summary of the research findings, conclusions drawn from the study, and recommendations for future research directions. The study demonstrates the potential of high-temperature corrosion-resistant coatings to mitigate the detrimental effects of oxidation and corrosion on gas turbine components, thereby improving their reliability, efficiency, and operational lifespan. In conclusion, the development of high-temperature corrosion-resistant coatings for gas turbine components represents a significant advancement in materials engineering and has the potential to revolutionize the performance and durability of gas turbine systems in various industrial applications. This thesis contributes valuable insights into the design, development, and evaluation of advanced coatings for high-temperature applications, paving the way for further advancements in the field of materials and metallurgical engineering.