Development of aluminum based AA 2014 and AA 7075 dissimilar metals for aerospace applications

• Main Authors: Sivaraman, P., Prabhu, M.K., Nithyanandhan, T., Mohammed Razzaq, M., Kousik, K., Abraham, D. Dani
• Format: Conference Proceeding
• Language: English
• Subjects: Aluminum alloys; Friction stir welding; Rotational speeds; Stir casting and taguchi method; Tensile strength
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2020.05.486

The present study deals with the investigation of wear behavior of aluminum alloy. The material chosen for this study are AA2014 and AA7075. The two metals are joined together using friction stir welding. The Friction stir welding (FSW) process is a strong state joining process and the joining temperature is lower than that utilized in the combination welding forms. In this manner, for different metal welding, FSW is considered to offer a few focal points over combination welding. This study deals with the present examination centers around the impacts on tensile strength due to material position and device rotational speed. Material AA2014 and AA7075 material alloy are chosen for the welding process. The welded aluminum compounds are of a thickness of 6.0 mm in utilizing a traditional processing machine. The tried samples are inspected utilizing Scanning Electron Microscope (SEM) for the portrayal of microstructure and tribolayer on worn surface of composites. The outcomes uncover that wear pace of hybrid composite is lower than that of twofold composite. The wear rate diminished with the expanding load and sped up. The similar investigation uncovers that the proposed composites have lower erosion coefficient, less temperature rise and low noise level; anyway they have minimal higher wear rate. It is inferred that the hybrid composite has worthy degree of tribological attributes with blacky and smooth worn surface.