Authors:
Sophie Dubiez-Le Goff (Linde GmbH, Germany),
Marie Fischer (Marle | 3D Medlab, France),
Gaël Volpi (Marle | 3D Medlab, France)
Abstract:
Nitinol, a metal alloy of nickel and titanium, is an excellent candidate for many functional designs due to its particular shape memory and superelastic properties. Difficulties are encountered with Nitinol for conventional manufacturing and pose impediments to its widespread application. Hence, processing Nitinol through additive manufacturing could solve those challenges and lead to the development of functional medical devices or aerospace components.The aim of this study is to develop an optimized laser powder bed fusion process for high quality Ni-Ti parts combining tight composition requirement, ultra-low O2 process and adapted exposure parameters. Resulting parts are thus evaluated regarding their transformation temperature and shape memory or superelastic capacity as well as their mechanical properties with a specific focus on their ductility.
DOI:
https://doi.org/10.59499/WP225363936