|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
||Additive Manufacturing of Cu-based Shape Memory Alloys: Challenges and Perspectives
||Jose M. San Juan, Mikel Pérez-Cerrato, Lucía Del-Río, Ernesto Urionabarrenetxea, Josu Leunda, Iban González, Iban Quintana, Fernando Carreño, Nerea Burgos, María L. Nó
|On-Site Speaker (Planned)
||Jose M. San Juan
Shape memory alloys (SMAs) are functional materials exhibiting specific shape memory and superelastic effects. Nowadays additive manufacturing (AM) offers new processing capabilities of SMA and is already being applied to NiTi-based SMAs, but Cu-based SMAs are also attracting the attention because of some advantages over the NiTi SMAs. However, AM of Cu-based SMAs constitute a challenge due to the inherent processing difficulties associated with its high thermal conductivity and the microstructure required to obtain good functional properties.
In the present work the same atomized powders of Cu-Al-Ni SMA were processed by two different additive manufacturing methods, laser powder bed fusion and laser metal deposition, and the processing parameters were optimized for each method. The microstructure and the mechanical properties of shape memory and superelasticity obtained in each case will be comparatively analyzed, being also compared with the ones obtained by the classical powder metallurgy route processed by hot rolling.
||Additive Manufacturing, Mechanical Properties, Phase Transformations