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Title: Evolution of Intergranular Stresses in a Martensitic and an Austenitic NiTi Wire During Loading–Unloading Tensile Deformation

Journal Article · · Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science

In situ synchrotron X-ray diffraction testing was carried out on a martensitic and an austenitic NiTi wire to study the evolution of internal stresses and the stress-induced martensite (SIM) phase transformation during room temperature tensile deformation. From the point of lattice strain evolution, it is concluded that (1) for the martensitic NiTi wire, detwinning of the [011](B19') type II twins and the {010}(B19') compound twins is responsible for internal strains formed at the early stage of deformation. (2) The measured diffraction moduli of individual martensite families show large elastic anisotropy and strong influences of texture. (3) For the austenitic NiTi wire, internal residual stresses were produced due to transformation-induced plasticity, which is more likely to occur in austenite families that have higher elastic moduli than their associated martensite families. (4) Plastic deformation was observed in the SIM at higher stresses, which largely decreased the lower plateau stresses.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
Argonne National Laboratory - Advanced Photon Source; USDOE Office of Science (SC)
DOE Contract Number:
AC02-06CH11357
OSTI ID:
1392533
Journal Information:
Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Vol. 46, Issue 6; ISSN 1073-5623
Publisher:
ASM International
Country of Publication:
United States
Language:
English

References (44)

Temperature dependent deformation of the B2 austenite phase of a NiTi shape memory alloy journal December 2013
Evolution of crack-tip transformation zones in superelastic Nitinol subjected to in situ fatigue: A fracture mechanics and synchrotron X-ray microdiffraction analysis journal October 2007
Fatigue-crack growth behavior in the superelastic and shape-memory alloy nitinol journal March 2001
Evolution of lattice strain and phase transformation of β III Ti alloy during room temperature cyclic tension journal October 2013
Compressive response of NiTi single crystals journal August 2000
Hard X-ray studies of stress-induced phase transformations of superelastic NiTi shape memory alloys under uniaxial load journal May 2008
Martensite evolution in a NiTi shape memory alloy when thermal cycling under an applied load journal October 2011
New deformation twinning mode of B19′ martensite in Ti-Ni shape memory alloy journal November 1998
On elastic moduli and elastic anisotropy in polycrystalline martensitic NiTi journal August 2011
Texture evolution during nitinol martensite detwinning and phase transformation journal December 2013
EBSD studies of the stress-induced B2–B19′ martensitic transformation in NiTi tubes under uniaxial tension and compression journal May 2010
Phase fraction, texture and strain evolution in superelastic NiTi and NiTi–TiC composites investigated by neutron diffraction journal September 1999
Stabilisation of martensite due to shear deformation via variant reorientation in polycrystalline NiTi journal August 2000
Lattice stability, elastic constants and macroscopic moduli of NiTi martensites from first principles journal December 2008
In situ neutron diffraction studies of martensitic transformations in NiTi polycrystals under tension and compression stress journal July 2004
Physical metallurgy of Ti–Ni-based shape memory alloys journal July 2005
Stress induced martensite transformation in Co–28Cr–6Mo alloy during room temperature deformation journal September 2013
Measurement of elastic constants of monoclinic nickel-titanium and validation of first principles calculations journal May 2013
Impurity levels and fatigue lives of pseudoelastic NiTi shape memory alloys journal June 2013
Texture, strain, and phase-fraction measurements during mechanical cycling in superelastic NiTi journal March 2001
Phase volume fractions and strain measurements in an ultrafine-grained NiTi shape-memory alloy during tensile loading journal April 2010
Texture development and strain hysteresis in a NiTi shape-memory alloy during thermal cycling under load journal May 2009
Micromechanical quantification of elastic, twinning, and slip strain partitioning exhibited by polycrystalline, monoclinic nickel–titanium during large uniaxial deformations measured via in-situ neutron diffraction journal November 2013
Cyclic deformation mechanisms in precipitated NiTi shape memory alloys journal October 2002
Transformation-induced plasticity during pseudoelastic deformation in Ni–Ti microcrystals journal July 2009
An overview of nitinol medical applications journal December 1999
In situ observation of individual variant transformations in polycrystalline NiTi journal November 2008
Strain mapping of crack extension in pseudoelastic NiTi shape memory alloys during static loading journal September 2013
A profile refinement method for nuclear and magnetic structures journal June 1969
Strain and texture evolution during mechanical loading of a crack tip in martensitic shape-memory NiTi journal June 2007
Structure-Property Relationships in Conventional and Nanocrystalline NiTi Intermetallic Alloy Wire journal August 2009
Young’s modulus evolution and texture-based elastic–inelastic strain partitioning during large uniaxial deformations of monoclinic nickel–titanium journal April 2013
Role of B19′ martensite deformation in stabilizing two-way shape memory behavior in NiTi journal November 2012
Origin of abnormal multi-stage martensitic transformation behavior in aged Ni-rich Ti–Ni shape memory alloys journal August 2004
Elastic modulus of shape-memory NiTi from in situ neutron diffraction during macroscopic loading, instrumented indentation, and extensometry journal February 2005
Cold-Drawn Bioabsorbable Ferrous and Ferrous Composite Wires: An Evaluation of Mechanical Strength and Fatigue Durability journal April 2012
Twinning and detwinning of 〈0 1 1〉 type II twin in shape memory alloy journal October 2003
Plastic deformation of NiTi shape memory alloys journal January 2013
Combined texture and structure analysis of deformed limestone from time-of-flight neutron diffraction spectra journal January 1997
Deformation mechanism of martensite in Ti-rich Ti–Ni shape memory alloy thin films journal February 2006
Size effects on the martensitic phase transformation of NiTi nanograins journal February 2007
Single‐crystal elastic constants of the equiatomic NiTi alloy near the martensitic transformation journal March 1980
Mechanical fatigue and fracture of Nitinol journal January 2012
Stress dependence of the hysteresis in single crystal NiTi alloys journal June 2004

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