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The surface performance of shot peened and ion implanted NiTi shape memory alloy

Grant, D.M. and Green, S.M. and Wood, J.V. (1995) The surface performance of shot peened and ion implanted NiTi shape memory alloy. Acta Metallurgica et Materialia, 43 (3). pp. 1045-1051. ISSN 0956-7151

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Abstract

Equiatomic NiTi shape memory alloy in austenitic and martensitic forms has been modified by shot peening with glass media and by N+ ion implantation. The effect upon microstructure, surface hardness and coefficient of friction was measured, along with the effect of the two treatments upon the shape memory behaviour. Examination using transmission electron microscopy (TEM) showed amorphous regions within the surfaces treated by both peening and ion implantation. In addition, peened and ion implanted samples showed similar increases in surface hardness and reduced surface friction coefficient. Differential scanning calorimetry showed that both surface treatments had no effect upon the bulk shape memory phase transformation behaviour.

Item Type: Article
Journal or Publication Title: Acta Metallurgica et Materialia
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: Faculty of Science and Technology > Engineering
ID Code: 57866
Deposited By: ep_importer_pure
Deposited On: 16 Oct 2012 16:12
Refereed?: Yes
Published?: Published
Last Modified: 10 Apr 2014 00:03
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/57866

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