Abbreviated Journal Title
Appl. Phys. Lett.
Keywords
SHAPE-MEMORY PHENOMENA; TINI ALLOY; MARTENSITIC TRANSFORMATIONS; THERMODYNAMIC ANALYSIS; PHASE-FRACTION; MICROSTRUCTURE; BEHAVIOR; TEXTURE; Physics, Applied
Abstract
In situ neutron diffraction measurements during loading have been performed on plastically deformed superelastic NiTi samples. The measurements observed retained B19' phase in the unloaded state as a result of the plastic deformation in otherwise completely B2 phase samples. A reversible stress-induced B2-B19' transformation on application and removal of stress occurred in the presence of this retained B19' phase. The amount and orientation of this retained B19' phase changed with cycling. Such direct atomic scale observations in the bulk are used here for the first time to qualitatively elucidate the macroscopic stress-strain response in plastically deformed superelastic NiTi.
Journal Title
Applied Physics Letters
Volume
88
Issue/Number
20
Publication Date
1-1-2006
Document Type
Article
DOI Link
Language
English
First Page
3
WOS Identifier
ISSN
0003-6951
Recommended Citation
Rathod, C. R.; Clausen, B.; Bourke, M. A. M.; and Vaidyanathan, R., "Neutron diffraction investigation of hysteresis reduction and increase in linearity in the stress-strain response of superelastic NiTi" (2006). Faculty Bibliography 2000s. 6492.
https://stars.library.ucf.edu/facultybib2000/6492
Comments
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