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Observations during mechanical testing of Nitinol

Record type: Article

Superelastic and shape memory capabilities of Nitinol are strongly dependent on the alloy composition, its heat treatment, and mechanical deformation history. The current article presents a review of the behaviour of Nitinol and describes a characterization study conducted to determine the mechanical properties of the material, both by means of differential scanning calorimetry (DSC) and by mechanical testing at a range of temperatures. Values for key transformation temperatures are found using both techniques. It is concluded that mechanical deformation during sample preparation for DSC measurements may have led to material property modifications and hence erroneous phase transformation temperature values. It is shown that mechanical testing can provide a means of benchmarking DSC data.

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Citation

Eaton-Evans, J., Dulieu-Barton, J.M., Little, E.G. and Brown, I.A. (2008) Observations during mechanical testing of Nitinol Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 222, (2), pp. 63-70. (doi:10.1243/09544062JMES797).

More information

Submitted date: July 2007
Published date: 2008
Keywords: nitinol, phase transformations, differential scanning calorimetry, mechanical testing
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 50783
URI: http://eprints.soton.ac.uk/id/eprint/50783
ISSN: 0954-4062
PURE UUID: 8b2d51ab-2289-4d7a-a9f5-1d1774e1ea52

Catalogue record

Date deposited: 31 Mar 2008
Last modified: 17 Jul 2017 14:50

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Contributors

Author: J. Eaton-Evans
Author: E.G. Little
Author: I.A. Brown

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