A note on size effect in actuating NiTi shape memory alloys by electrical current

An, L., Huang, Wei Min, Fu, Yong Qing and Guo, N. Q. (2008) A note on size effect in actuating NiTi shape memory alloys by electrical current. Materials & Design, 29 (7). pp. 1432-1437. ISSN 0261 3069

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Official URL: http://dx.doi.org/10.1016/j.matdes.2007.09.001

Abstract

The size effect in triggering the actuation of NiTi shape memory alloys directly by electrical current is investigated. Wire/rod is taken as an example in this study to show the relationship between the diameter of shape memory alloy wire/rod and the required current/power for actuation, and in the case of cyclic operation, achievable frequency. Through a few case studies, it is revealed that by presenting on logarithmic scale, the major operating characteristics can be quickly estimated as linear functions of wire/rod diameter.

Item Type: Article
Uncontrolled Keywords: Shape memory alloy; Size effect; Actuation; Power; Frequency
Subjects: F200 Materials Science
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 27 Mar 2015 10:31
Last Modified: 07 Mar 2016 14:26
URI: http://nrl.northumbria.ac.uk/id/eprint/21882

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