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Influence of surface state on properties of Ni-Mn-Ga actuator elements

Einfluss des Oberflächenzustandes auf die Eigenschaften von Ni-Mn-Ga Aktorelementen
: Böhm, Andrea; Schneider, Jörg; Drossel, Welf-Guntram; Pagounis, Emmanouel; Laufenberg, Markus

Actuator 2018, 16th International Conference on New Actuators : Bremen, Germany, 25-27 June 2018
Bremen: Messe Bremen, 2018
ISBN: 978-3-933339-30-0
International Conference on New Actuators <16, 2018, Bremen>
Conference Paper
Fraunhofer IWU ()
Ni-Mn-Ga; actuator elements; surface roughness; microstructure

The wire eroding technology was applied for the production of Ni-Mn-Ga single crystalline actuator elements. This paper presents results for the optimized preparation of Ni-Mn-Ga single crystalline actuator elements. The surface quality of the single crystalline Ni-Mn-Ga actuator elements was investigated after the processing route. A relation was found between preparation parameters and the quality of orientations. The results are discussed with respect to surface roughness and twinning behavior and will help to better understand the microstructure-property relationship of this new class of smart materials.