|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
||In-Situ Alloying of Nb-47Ti Superconductors Using Laser Powder Bed Fusion
||Tugrul Ersoz, Moataz M. Attallah
|On-Site Speaker (Planned)
Additive Manufacturing of superconductors may provide a more economic manufacturing route that can produce complex superconductor components for advanced applications. In this study, in-situ alloying of Nb-47Ti alloy was performed using Laser Powder Bed Fusion, combined with extensive characterisation to assess the impact of the process on the microstructure and superconducting behaviour. To improve the superconducting behaviour, post-processing treatments and blending of submicron/nano-sized oxides were used to create a more chemically homogeneous microstructure and artificial pinning centres to improve the current density, respectively. Generally, high temperature heat treatments were required to fully dissolve the unmelted Nb, although a better control of the powder size in the blend is essential to ensure the build chemical homogeneity. Flux pinning using the fine oxides adds another complexity to the process but can potentially generate superior critical current density compared to the alpha-Ti pinning centres in conventional superconductors.
||Additive Manufacturing, Magnetic Materials, Other