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

Thesis Abstract

Abstract
Gas turbine engines play a crucial role in various industrial applications, including power generation, aviation, and marine propulsion. One of the critical challenges faced by gas turbine components is high-temperature corrosion, which can lead to degradation and failure of the engine. In this context, the development of high-temperature corrosion-resistant coatings for gas turbine blades has garnered significant attention in the field of materials and metallurgical engineering. This thesis aims to investigate and develop advanced coatings that can enhance the corrosion resistance of gas turbine blades operating at elevated temperatures. Chapter 1 provides an introduction to the research topic, including the background of the study, problem statement, objectives, limitations, scope, significance, structure of the thesis, and definitions of key terms. The literature review in Chapter 2 covers ten key aspects related to high-temperature corrosion mechanisms, existing coating technologies, materials selection criteria, coating deposition techniques, and performance evaluation methods. Chapter 3 outlines the research methodology, including the selection of coating materials, deposition techniques, experimental setup, corrosion testing procedures, and data analysis methods. The methodology section also discusses the factors influencing coating performance, such as microstructure, composition, thickness, and adhesion to the substrate. Moreover, it highlights the importance of optimizing coating parameters to achieve superior corrosion resistance. Chapter 4 presents a detailed discussion of the research findings, including the characterization of developed coatings, corrosion test results, microstructural analysis, chemical composition, surface morphology, and adhesion properties. The chapter also discusses the influence of processing conditions on the coating performance and identifies the key factors affecting the corrosion resistance of gas turbine blades. Finally, Chapter 5 summarizes the research outcomes, conclusions, and recommendations for future work. The study demonstrates the feasibility of developing high-temperature corrosion-resistant coatings for gas turbine blades using advanced materials and deposition techniques. The findings of this research contribute to the ongoing efforts to enhance the performance and reliability of gas turbine engines in high-temperature environments. In conclusion, the development of high-temperature corrosion-resistant coatings for gas turbine blades is a critical area of research with significant potential to improve the efficiency and longevity of gas turbine engines. This thesis provides valuable insights into the design, development, and evaluation of advanced coatings for protecting gas turbine components from corrosion at elevated temperatures. The outcomes of this research can benefit industries relying on gas turbine technology and pave the way for future advancements in materials engineering and surface protection technologies.