About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Processing and Characterization
|
Presentation Title |
Through Thickness Localized Strain Distribution and Microstructural Characterization of Functionally Graded Al/GNP Composite Fabricated by Friction Stir Processing |
Author(s) |
Abhishek Sharma, Yoshiaki Morisada, Hidetoshi Fujii |
On-Site Speaker (Planned) |
Abhishek Sharma |
Abstract Scope |
In the present study, the through-thickness functionally graded Al/GNP composite is fabricated by a novel single-step friction stir processing involving a step grooving approach. The digital image correlation technique reveals a variation in localized yield strength from ~ 44 MPa at the surface to ~ 49 MPa at the core giving a significant variation of ~ 5 MPa within a short span of 2 mm (thickness) indicating the higher stiffness of the core region. The maximum strain value also ranges from ~ 0.79 at the surface to ~ 0.48 at the core of the composite signifying the strain accumulation near the FSP surface. The load transfer through the clean and semi-coherent interface between the GNP and Al matrix seems to have the dominant role in the localized strengthening of the core region. The property gradient indicates that the objective of fabricating the FGC is successfully realized by the proposed methodology. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Composites, Mechanical Properties |