ACTUATOR 2016 Manuscript C2.1


Author: Hubert Borgmann
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Pages: 4
Language: English
Publication date: 01/06/2016
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Manuscript C2.1 published in Conference Proceedings ACTUATOR 2016
Advances in NiTi-based SMA for Actuators

A. Coda, L. Fumagalli
SAES Getters S.p.A., Lainate, Italy

Abstract:
Shape memory alloys (SMA) are known to be multifunctional materials which can be naturally considered as sensor-actuator elements, demonstrating large possibilities for applications in high-tech smart systems. The fascinating property of shape recovery allows generating large work outputs particularly in small dimensions. Upon miniaturization, intrinsic advantages of these materials are maximized. Thus, SMAs are virtually predestined for applications in microsystems technology, which is rapidly evolving and it is not surprising that the most successful SMA products are nowadays in that field. However, there are still a few limiting factors to a widespread diffusion of SMAs in some technological fields. The probably most debated aspect around NiTi alloys is microcleanliness considered as the main factor affecting functional and structural fatigue. This concept is becoming increasingly important as the industrial market moves to smaller, lower profile devices with thinner structures. In this work a comprehensive microstructural and functional characterization of NiTi-based shape memory wires with diameter below 100μm is presented. Considerations about the effects of their nanocrystalline microstructure, as well as enhanced microcleanliness on the functional properties and fatigue behaviour are spent and discussed.
El vendedor asume toda la responsabilidad de esta entrada.
Hubert Borgmann, MESSE BREMEN,
Project Manager ACTUATOR, International Conference and Exhibition on New Actuators and Drive Systems, Bremen, Germany, and Editor of the ACTUATOR Conference Proceedings (www.actuator.de)
Project Manager ITHEC, International Conference and Exhibition on Thermoplastic Composites, Bremen, Germany, and Editor of the ITHEC Conference Proceedings (www.ithec.de)

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