APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter UniPHY Group iResearch App Facebook

Applied Physics Letters / Volume 97 / Issue 9 / STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER

Appl. Phys. Lett. 97, 091910 (2010); http://dx.doi.org/10.1063/1.3481694 (3 pages)

Low temperature deformation of the R-phase in a NiTiFe shape memory alloy

V. B. Krishnan1, S. B. Shmalo1, C. R. Rathod1, M. A. M. Bourke2, and R. Vaidyanathan1

1Department of Mechanical, Materials and Aerospace Engineering, Advanced Materials Processing and Analysis Center (AMPAC), University of Central Florida, Orlando, Florida 32816, USA
2Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

View MapView Map

(Received 16 February 2010; accepted 3 August 2010; published online 3 September 2010)

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.

© 2010 American Institute of Physics

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

compressive strength, cryogenics, elastic moduli, internal stresses, iron alloys, lattice constants, neutron diffraction, nickel alloys, reverse martensitic transformations, shape memory effects, titanium alloys, twinning

PACS

  • 81.40.Lm

    Deformation, plasticity, and creep

  • 62.20.fg

    Shape-memory effect; yield stress; superelasticity

  • 81.40.Jj

    Elasticity and anelasticity, stress-strain relations

  • 62.20.de

    Elastic moduli

  • 64.70.kd

    Metals and alloys

  • 81.30.Kf

    Martensitic transformations

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3481694

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    S. Rajagopalan, A. L. Little, M. A. M. Bourke, and R. Vaidyanathan, Appl. Phys. Lett. 86, 081901 (2005)APPLAB000086000008081901000001.

    C. R. Rathod, B. Clausen, M. A. M. Bourke, and R. Vaidyanathan, Appl. Phys. Lett. 88, 201919 (2006)APPLAB000088000020201919000001.

    S. Qiu, V. B. Krishnan, S. A. Padula II, R. D. Noebe, D. W. Brown, B. Clausen, and R. Vaidyanathan, Appl. Phys. Lett. 95, 141906 (2009)APPLAB000095000014141906000001.

    T. R. Woodruff, V. B. Krishnan, B. Clausen, T. Sisneros, V. Livescu, D. W. Brown, M. A. M. Bourke, and R. Vaidyanathan, Rev. Sci. Instrum. 81, 063903 (2010)RSINAK000081000006063903000001.

    R. Vaidyanathan, M. A. M. Bourke, and D. C. Dunand, J. Appl. Phys. 86, 3020 (1999)JAPIAU000086000006003020000001.


Figures (4)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)



Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Low temperature deformation of the R-phase in a NiTiFe shape memory alloy
  2. Raman scattering determination of the energy difference between Γ and L conduction band minima in Ga1−xInxAsySb1−y
  3. Micropump based on liquid marbles
  4. Hydrogen related defect complexes in ZnO nanoparticles
Go to AIP Home
Copyright © American Institute of Physics
close