INVESTIGADORES
SOBRERO Cesar Enrique
artículos
Título:
Additive Manufacturing of Co-Ni-Ga High-Temperature Shape Memory Alloy: Processability and Phase Transformation Behavior
Autor/es:
LAUHOFF, C.; FISCHER, A.; SOBRERO, C.; LIEHR, A.; KROOß, P.; BRENNE, F.; RICHTER, J.; KAHLERT, M.; BÖHM, S.; NIENDORF, T.
Revista:
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
Editorial:
SPRINGER
Referencias:
Año: 2020 vol. 51 p. 1056 - 1061
ISSN:
1073-5623
Resumen:
Co-Ni-Ga high-temperature shape memory alloy is additively processed by selective laser melting for the first time. Reversible martensitic transformation of the as-built material is proven by differential scanning calorimetry. Microstructural analysis reveals a columnar-grained microstructure resulting from epitaxial solidification. Columnar-grained microstructures are characterized by a very low degree of constraints being beneficial for superior functional performance in numerous shape memory alloys. However, process-induced crack formation remains a challenge towards robust realization of adequate conditions showing good mechanical properties.
