Thesis Abstract

Abstract
Additive Manufacturing (AM) technology has revolutionized the production of metal components by enabling the fabrication of complex geometries with enhanced performance characteristics. This thesis focuses on the characterization and optimization of microstructure in additively manufactured metal alloys to improve the mechanical properties and performance of the components produced. The research aims to investigate the influence of process parameters on microstructure evolution, mechanical properties, and performance of additively manufactured metal alloys. Chapter One provides an introduction to the research topic, highlighting the background of the study, problem statement, objectives, limitations, scope, significance, structure of the thesis, and definition of terms. The literature review in Chapter Two presents a comprehensive analysis of existing studies on additive manufacturing, microstructure characterization, and optimization techniques in metal alloys. Chapter Three outlines the research methodology, including the selection of materials, additive manufacturing process parameters, characterization techniques, mechanical testing methods, and data analysis procedures. The experimental setup and procedures for fabricating metal alloy samples using additive manufacturing techniques are detailed in this chapter. Chapter Four presents a detailed discussion of the findings obtained from the experimental investigations. The microstructural characteristics of the additively manufactured metal alloys are analyzed, and the influence of process parameters on microstructure evolution is discussed. The mechanical properties, such as tensile strength, hardness, and impact toughness, are evaluated to assess the performance of the components. In Chapter Five, the conclusions drawn from the research findings are summarized, and recommendations for optimizing the microstructure of additively manufactured metal alloys are provided. The significance of the research in advancing the understanding of microstructure-property relationships in AM metal alloys and its implications for industrial applications are highlighted. Overall, this research contributes to the ongoing efforts to enhance the performance of additively manufactured metal components by optimizing their microstructure. The findings of this study have implications for various industries, including aerospace, automotive, and medical sectors, where the mechanical properties of metal components are critical for performance and reliability.

Thesis Overview

The project titled "Characterization and Optimization of Microstructure in Additively Manufactured Metal Alloys" aims to delve into a critical aspect of materials and metallurgical engineering, particularly focusing on the additive manufacturing process and its impact on the microstructure of metal alloys. Additive manufacturing, also known as 3D printing, has revolutionized the manufacturing industry by enabling the production of complex geometries and customized components with enhanced material properties. However, the microstructure of additively manufactured metal alloys plays a crucial role in determining their mechanical, thermal, and chemical properties, which directly influence their performance and reliability in various applications. The research will commence with a comprehensive literature review to explore the existing knowledge on the microstructure of additively manufactured metal alloys, including the influence of process parameters, post-processing treatments, and alloy compositions on the resulting microstructural features. By analyzing and synthesizing the findings from previous studies, this research aims to identify gaps in the current understanding and propose novel approaches to characterize and optimize the microstructure of additively manufactured metal alloys. In the subsequent research methodology chapter, the project will outline the experimental approach and techniques to be employed for microstructural analysis, such as optical microscopy, scanning electron microscopy, X-ray diffraction, and electron backscatter diffraction. The research will involve the fabrication of metal alloy specimens using additive manufacturing techniques, followed by a systematic investigation of the microstructural evolution under different processing conditions. The discussion of findings chapter will present a detailed analysis of the experimental results, highlighting the effects of process parameters, post-processing treatments, and alloy compositions on the microstructure of additively manufactured metal alloys. By correlating the microstructural features with the mechanical properties, thermal stability, and corrosion resistance of the fabricated specimens, this research aims to elucidate the underlying mechanisms governing the microstructure-property relationships in additively manufactured metal alloys. In conclusion, the project will provide valuable insights into the characterization and optimization of microstructure in additively manufactured metal alloys, contributing to the advancement of materials and metallurgical engineering. The research outcomes are expected to have significant implications for various industries, including aerospace, automotive, biomedical, and energy, where additively manufactured metal alloys are increasingly being utilized for their unique advantages. Ultimately, this research seeks to enhance the understanding of microstructure-property relationships in additively manufactured metal alloys and pave the way for the development of advanced materials with tailored properties for specific applications.