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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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 > Mathematics, Physics and Electrical Engineering
Depositing User:	Becky Skoyles
Date Deposited:	27 Mar 2015 10:31
Last Modified:	12 Oct 2019 19:06
URI:	http://nrl.northumbria.ac.uk/id/eprint/21882

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