|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Nano/Micro-mechanics and Length-scale Phenomena
||Capturing the effects of grain boundaries and intersplat boundaries on deformation behavior of cold sprayed components
||Yubraj Paudel, Ryan Cochran, Shiraz Mujahid, Kyle Considine, Hongjoo Rhee
|On-Site Speaker (Planned)
Cold spraying is a solid-state deposition process at a lower than melting temperature that can produce nanostructured coatings with negligible grain growth, wrought-like microstructure, near-theoretical density, and minimal compressive residual stresses. Microstructural characterization of cold sprayed Al6061 alloy showed a grain distribution with smaller grains across the intersplat boundary region and larger grains within the powder particles. In this work, full-field crystal plasticity fast-Fourier transform (CPFFT) simulation was used to understand the effects of such grain topology on deformation behavior of cold sprayed components. The study showed the differences in deformation behavior across the substrate-powder boundary, intersplat boundary, as well as within a powder particle. The simulation results were also compared with the deformation behavior of rolled Al6061 alloy.