About this Abstract |
Meeting |
2023 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 |
Load Transfer in Ni-CrC Composites Studied by Synchrotron X-ray Diffraction and X-ray Microtomography |
Author(s) |
Lewei He, Eshan Ganju, Nikhilesh Chawla, Mostafa Hassani |
On-Site Speaker (Planned) |
Mostafa Hassani |
Abstract Scope |
Load transfer between the soft and hard phases is a critical mechanism governing the overall mechanical behavior of metal matrix composites. A complete understanding of the phenomenon requires insight beyond what can be obtained by conventional mechanical testing. In this talk, we will describe the use of synchrotron high-energy x-ray diffraction and x-ray microtomography to resolve the microstructure and the phase-specific response of Ni-CrC composites under uniaxial loading. We fabricated the composites using a solid-state additive approach, namely cold spray, that allows co-deposition of more than one type of powder particles. We studied, in detail, the three-dimensional distribution and the characteristics of reinforcing particles and defects in the as-manufactured and heat-treated composites. These were also correlated to the phase-specific lattice strains and stresses upon loading. We will discuss the extent of internal load transfer in both cases and the connection to defect characteristics in the composite. |
Proceedings Inclusion? |
Planned: |
Keywords |
Composites, Mechanical Properties, Additive Manufacturing |