Available online at www.sciencedirect.com ScienceDirect Materials Today: Proceedings 5 (2018) 25534–25540 www.materialstoday.com/proceedings 2214-7853 © 2018 Elsevier Ltd. All rights reserved. Selection and/or Peer-review under responsibility of International Conference on Advances in Materials and Manufacturing Applications [IConAMMA 2017]. IConAMMA_2017 Influence of Multi Axial Forging (MAF) on Microstructure and Mechanical Properties of Cu-Ti Alloy Ramesh S a *, H. Shivananda Nayaka a , Gopi K. R a a Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal, India-575025 Abstract Multi axial forging (MAF) is one among the severe plastic deformation (SPD) processes, where large strains are imposed into the component. In the present work, as-received Cu-1.5%Ti alloy was subjected to MAF for 2 and 4 cycles at room temperature. Microstructure showed grain refinement after 2 and 4 cycles. Average grain size obtained for MAF processed samples after 2 and 4 cycles are 120 µm and 40 µm, respectively compared to initial grain size of 800 µm. The Mechanical properties were analyzed for as-received and MAF processed samples. Tensile test showed increased ultimate tensile strength (493 MPa) for MAF 4-cycle sample compared to as-received (191 MPa) condition with accumulated strain of 2.18 for 4 cycles. Increase in hardness was observed for MAF processed sample of 143 Hv for 4-cycle compared to as-received sample of 67 Hv. © 2018 Elsevier Ltd. All rights reserved. Selection and/or Peer-review under responsibility of International Conference on Advances in Materials and Manufacturing Applications [IConAMMA 2017]. Keywords: Multi axial forging;Cu-Ti alloy; Grain refinement; Microstructure; Mechanical properties; Fractography 1. Introduction Copper and its alloys are extensively used for many applications in automobile industry, electrical applications, which require good mechanical properties and electrical conductivity. Various SPD processes such as accumulative roll bonding (ARB), high pressure torsion (HPT), repetitive corrugation and straightening (RCS) and equal channel angular pressing (ECAP) have been developed from past few decades [1]. Compared to above SPD processes, MAF * Corresponding author. Tel.: +91 9742103996. E-mail address:ramaghalli@gmail.com