Issue 77

Ravikumar M et alii, Fracture and Structural Integrity, 77 (2026) 421-436; DOI: 10.3221/IGF-ESIS.77.24

Mechanical, tribological and fractography analysis of structural grade Al7075/n-TiC composites and optimization of wire EDM parameters through Taguchi method

Ravikumar M, Chidanand Kishor Mangrulkar Dept., of Mechanical Engineering, B M S College of Engineering, Karnataka, India ravikumarm.mech@bmsce.ac.in, https://orcid.org/0000-0002-4958-839X chidanandkm.mech@bmsce.ac.in Vinod B R Department of Civil Engineering, B.M.S Institute of Technology and Management, Bengaluru -560119, KA, India vinod.vbr@gmail.com Balaji Y S Department of Mechanical Engineering, Nagarjuna College of Engineering and Technology, Bangalore, KA, India ys.balaji@gmail.com Hemaraju Department of Mechanical Engineering, B G S Institute of Technology, Adichunchanagiri University, B G Nagar, Nagamangala (T), Mandya (D), KA, India hemaraju@bgsit.ac.in

Citation: Ravikumar, M., Mangrulkar, C. K., Vinod, B R., Balaji, Y S., Hemaraju., Mechanical, tribological and fractography analysis of structural grade Al7075/n-TiC composites and optimization of wire EDM parameters through Taguchi method, Fracture and Structural Integrity, 77 (2026) 421-436.

A BSTRACT . The effects of nanoscale TiC (n-TiC) reinforcement on Al7075 composites made by stir casting with 0%, 1%, 2%, 3%, and 4% reinforcement are examined in this work. The existence of n-TiC particles in the aluminum matrix was verified by microstructural investigation. When compared to un reinforced alloy (Al7075), the mechanical, tribological, and wear properties were greatly improved by the addition of n-TiC; hardness, tensile strength, and wear resistance increased by 28.57%, 24.41%, and 33.69%, respectively. Molybdenum wire was used as the electrode material in an experimental investigation of the produced nano composites' machinability characteristics during Wire Electrical Discharge Machining (WEDM). Two machining attributes, Material Removal Rate (MRR) and Surface Roughness (SR), are

Received: 06.03.2026 Accepted: 18.05.2026 Published: 14.06.2026 Issue: 07.2026

Copyright: © 2026 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

421