About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
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Symposium
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Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
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Presentation Title |
Synchrotron X-ray Studies of Deformation and Failure in Cold Spray Composites |
Author(s) |
Lewei He, Darren Pagan, Qi An, Aaron Nardi, Mostafa Hassani |
On-Site Speaker (Planned) |
Mostafa Hassani |
Abstract Scope |
Cold spray is an effective solid-state process for the fabrication of composite materials. Different material classes including metals, ceramics, and intermetallics can be co-deposited in supersonic nozzles to make composite materials, enabling a favorable combination of the properties of the constituent phases. While improved mechanical properties of cold spray composites have been reported in a variety of material systems, it is often challenging to deconvolute the collective mechanical behavior to understand the mechanistic contributions of the constituent phases. Here, we use high energy synchrotron X-rays to study deformation and failure of Ni-CrC cold spray composites. We conduct in-situ loading experiments where synchrotron X-ray diffraction and computed tomography are utilized at multiple load steps to measure the evolution of phase-specific lattice strains and characterize failure modes. Our work provides understanding of the load partitioning between the soft and hard phases and unravels the key failure mechanisms of cold spray composites. |
Proceedings Inclusion? |
Planned: |