Authors

V. B. Krishnan; S. B. Shmalo; C. R. Rathod; M. A. M. Bourke;R. Vaidyanathan

Comments

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“This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in the linked citation and may be found originally at Applied Physics Letters.

Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

ACQUIRED IN-SITU; TRANSFORMATIONS; Physics, Applied

Abstract

Deformation in the P3 phase (R-phase) of NiTiFe was investigated by in situ neutron diffraction during compressive loading at cryogenic temperatures. At 216 K, upon loading the R-phase detwinned and subsequently underwent a reversible stress-induced transformation to the B19' phase (martensite). At 92 K on the other hand, detwinning was suppressed and the stress-induced martensite formed did not transform back upon unloading. The experiments also directly observed a hitherto theoretically predicted B33 phase. Rietveld refinement of the neutron diffraction spectra were used to determine lattice parameters of the B33 and R-phases. Plane-specific elastic moduli were also determined for the R-phase.

Journal Title

Applied Physics Letters

Volume

97

Issue/Number

9

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

3

WOS Identifier

WOS:000282187200019

ISSN

0003-6951

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