Investigating the Microstructure and Mechanical Properties of Materials Joined using Advanced Welding Techniques

¹ Department of Mechanical Engineering, GLA University, Mathura, UP, India
² Institute of Aeronautical Engineering, Hyderabad
³ Lloyd Institute of Engineering & Technology, Knowledge Park II, Greater Noida, Uttar Pradesh 201306
⁴ Lloyd Institute of Management and Technology, Plot No.-11, Knowledge Park-II, Greater Noida, Uttar Pradesh, India - 201306
⁵ Hilla University College, Babylon, Iraq
⁶ Lovely Professional University, Jalandhar-Delhi G.T. Road (NH-1), Phagwara, Punjab ( INDIA ) - 144411.

^* Corresponding author: Gaurav.pant@gla.ac.in

Abstract

The science of materials joining has witnessed the emergence of advanced welding techniques, which have become crucial operations. These techniques provide improved manipulation and regulation of the microstructure and mechanical characteristics of welded joints. The primary objective of this work is to examine the complex correlation between the microstructure and mechanical characteristics of materials that have undergone joining processes utilising sophisticated welding methods. The present research provides insight into the development of many microstructural characteristics, including grain growth, phase transitions, and defect creation, and their influence on the mechanical properties of welded joints. The mechanical characteristics being examined span a broad spectrum of factors, such as tensile strength, toughness, hardness, and fatigue resistance. The evaluation of these qualities is conducted by subjecting specimens obtained from the welded joints to a variety of mechanical tests. Through the correlation of microstructural traits with the observed mechanical behaviour, a more profound comprehension of the structure-property link in advanced welding is attained. In addition, this study investigates the impact of welding parameters, including welding speed, heat input, and shielding gas composition, on the microstructure and mechanical characteristics. The objective of this inquiry is to optimise the welding parameters in order to get the specified material characteristics in the welded connections, while simultaneously minimising the development of faults and ensuring the maintenance of structural integrity.