Observations during mechanical testing of Nitinol
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), 63-70. (doi:10.1243/09544062JMES797).
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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.
|Keywords:||nitinol, phase transformations, differential scanning calorimetry, mechanical testing|
|Subjects:||R Medicine > R Medicine (General)
T Technology > TA Engineering (General). Civil engineering (General)
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences > Fluid-Structure Interactions
|Date Deposited:||31 Mar 2008|
|Last Modified:||01 Jun 2011 00:11|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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