About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
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Symposium
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Ultrafine-grained and Heterostructured Materials (UFGH XII)
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Presentation Title |
Investigation of Microstructural Inhomogeneity and Mechanical Characteristics of Severely Deformed Copper Sheet |
Author(s) |
Nikhil Tripathi, Swapnil Sawalkar, Kallol Mondal, Shashank Shekhar |
On-Site Speaker (Planned) |
Nikhil Tripathi |
Abstract Scope |
Constrained groove pressing is a severe plastic deformation process, which is known to improve mechanical properties of materials. Studies have shown that CGP processed materials contain inherent microstructural inhomogeneity due to which properties like hardness shows non-uniformity at micro-level. This strain inhomogeneity arises due to sharp edges of die where both bending and shear deformation occurs while rest of sample region experiences only shear deformation. Since bending strain is inversely proportional to radius of curvature, hence, changing the radius of curvature of corners is expected to minimize the impact of bending strain. Recent studies have shown that this strain inhomogeneity also broadly depends on pressing orientation of sheets and CGP-CR (cross route) is an efficient way of injecting strain symmetrically along both longitudinal and transverse directions of specimen. In this work, we investigate how microstructural inhomogeneity and mechanical properties can be modified by changing die design along with processing route |
Proceedings Inclusion? |
Planned: |