Analysis of the thermomechanical behavior of Ti-Ni shape memory alloy thinfilms by bulging and nanoindentation procedures

Authors
Moyne, S Poilane, C Kitamura, K Miyazaki, S Delobelle, P Lexcellent, C
Citation
S. Moyne et al., Analysis of the thermomechanical behavior of Ti-Ni shape memory alloy thinfilms by bulging and nanoindentation procedures, MAT SCI E A, 275, 1999, pp. 727-732
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN journal
09215093 → ACNP
Volume
275
Year of publication
1999
Pages
727 - 732
Database
ISI
SICI code
0921-5093(199912)275:<727:AOTTBO>2.0.ZU;2-U
Abstract
Ti-Ni shape memory alloy (SMA) thin films are deposited by r.f. magnetron s puttering. In order to characterize their mechanical behavior, bulging and nanoindentation tests are performed. These two tests are made at complement ary length scales (from 10 to 1000 nm for nanoindentation and from 1000 nm to macroscopic scale for bulging) and the obtained results are consistent. Bulging leads to the reorientation of the platelets of a martensitic film. Nanoindentation induces martensitic transformation in an austenitic film, a nd a reorientation or the creation of a new phase from a martensitic one. ( C) 1999 Elsevier Science S.A. All rights reserved.