Correlative Tomography for micro- and nano- scale porosity reduction analysis in Additive Manufactured healable aluminium alloy
(2021) mmc2021 — Microscience Microscopy Congress 2021 — Location: virtual conference (5.July.2021)
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Abstract
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- Authors
Gheysen, Julie 
- Abstract
- Aluminium alloys are widely used in aerospace and aeronautic industries because of their excellent strength-to-weight ratio. In these applications, overloads can occur, damage the part and lead to its replacement. In order to increase the part’s lifetime, a solution would be to use a material able to heal its damage and restore its continuity. Designing self-healing metals is challenging because the damage is usually healed via solid-state diffusion, which cannot be triggered at room temperature. It requires a heat treatment to trigger the migration of the healing agents and allow the healing of these cracks and/or cavities. However, the damage and its healing are hard to quantify using only surface observations. Additionally, due to a multiscale distribution of the microstructure and damage size, a multiresolution and multimodal imaging approach with a spatial resolution from micro- to nano- scale is required to evidence the microstructure healing efficiency. Correlative tomography (CMT) is a concept/workflow of spatial registration in two and three dimensions (2D and 3D) of many imaging modalities - light microscopy (LM), electron/ion microscopy (EM, IM), X-Ray tomography, 2D/3D EBSD, EDS, Raman, etc.) - that allows various types of information, and at different length-scale, to be collected for the same region of interest (ROI). Therefore, the aim of this research was to develop a robust and controlled multiscale analysis protocol for evaluation of the cracks and pores dimensions within a healable AlMg alloy, using three-dimensional (3D) correlative microscopy/tomography.
- Affiliations
Citations
Gheysen, J., Bart Winiarski, Ali Chirazi, Adam Brinek, Zhu, Y., Pyka, G., & Simar, A. (2021). Correlative Tomography for micro- and nano- scale porosity reduction analysis in Additive Manufactured healable aluminium alloy. mmc2021 — Microscience Microscopy Congress 2021, virtual conference. https://hdl.handle.net/2078.5/111261