Influence of tool rotation speed on mechanical and microstructural characteristics of friction stir weld 7075 aluminum alloy reinforced with graphene nano platelets
Rahul Biradar, Sachinkumar Patil
Abstract. The growing demand for lightweight, durable materials within the aerospace industry has motivated researchers to develop composites exhibiting exceptional mechanical properties, thereby enabling a more economical and environment-friendly transformation. Carbonaceous reinforcement is increasingly prioritized due to its exceptional properties in modifying and enhancing the mechanical, microstructure, and tribological properties. In the present research, the nanocomposite of AA7075 aluminum alloy reinforced with graphene nanoplatelets (GNPs) has been developed through friction stir welding (FSW) technique. Obtained the significant process parameter of tool rotation speed 800 rpm, traverse speed 20 mm/min, and tilt angle 2º respectively. Microstructure in nugget zone exhibits fine and uniform grains. It results in significant enhancement of ultimate tensile strength (UTS) 821 MPa and yield strength (YS) 389 MPa. Further, higher hardness of 141 HV is reported in the nugget zone. Moreover, the joint is fractured at nugget zone and it represents the weakest part of the weld joint.
Keywords
AA7075, Friction Stir Welding, Graphene Nanoplatelets, Mechanical Properties, Microstructure
Published online 6/1/2025, 7 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Rahul Biradar, Sachinkumar Patil, Influence of tool rotation speed on mechanical and microstructural characteristics of friction stir weld 7075 aluminum alloy reinforced with graphene nano platelets, Materials Research Proceedings, Vol. 55, pp 95-101, 2025
DOI: https://doi.org/10.21741/9781644903612-15
The article was published as article 15 of the book Materials Joining and Manufacturing Processes
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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