Towards improved mechanical properties of aluminum alloys processed by laser powder bed fusion

Simar, Aude;Santos Macias, Juan Guillermo;Zhao, Lv;Poncelet, Olivier;van der Rest, Camille
(2021) conférence à ESAM Metz — Location: Metz (28.October.2021)

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Additive manufacturing (AM), in particular the technology called laser powder bed fusion (LPBF), is a promising technique that should represent a technological leap in material and part production. In parallel, high strength aluminum alloys are an usual choice as aerospace structural materials. In this presentation, I will review some solutions we developed to improve the relevant structural properties of LPBF aluminum alloys (AlSi10Mg, 7075 Al alloy or specifically designed alloys). The focus will be on improved microstructure for higher strength, damage and fatigue resistance. These solutions involve the use of post-treatments such as classical solid-state heat treatments, hot isostatic pressing but also more exotically friction stir processing or healing heat treatment.
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Simar, A., Santos Macias, J. G., Zhao, L., Poncelet, O., & van der Rest, C. (2021). Towards improved mechanical properties of aluminum alloys processed by laser powder bed fusion. conférence à ESAM Metz, Metz. https://hdl.handle.net/2078.5/228949