Phase transformation: shape memory effect and superelasticity
Atomistic simulation of shape memory effect (SME) and superelasticity (SE) in nanoporous NiTi shape memory alloy (SMA)
... the phase transformation characteristics of NiTi shape memory alloys (SMA), thus changing its shape memory as well as its superelasticity ...on phase fraction ...
22
Superelasticity and cryogenic linear shape memory effects of CaFe2As2
... this shape memory behavior is based on experimental observations during hydrostatic loading, our uniaxial results suggest that it is a real possibility in uniaxial compression as well which calls for ...
11
Phenomenological model for phase transformation characteristics of textured shape memory alloys
... Keywords: Shape memory alloys, Superelasticity ,Anisotropy, Tension-compression asymmetry, Transformation criteria, Evolution equation Abstract In the present study, a new ...
14
Phenomenological model for phase transformation characteristics of textured shape memory alloys
... Keywords: Shape memory alloys, Superelasticity ,Anisotropy, Tension-compression asymmetry, Transformation criteria, Evolution equation Abstract In the present study, a new ...
13
Influence of alloying elements and aging treatment on the phase transformation and shape memory behavior of Cu-Al-Ni shape memory alloys
... low shape recovery ...and shape memory effect of Cu-Ni-Al by alloying additions and aging heat ...hours. Phase transformation and microstructural changes were characterized using ...
61
Phase Transformation Behavior and Shape Memory Characteristics of Ti Ni Cu Mo Alloys
... the transformation behavior, electri- cal resistivity measurements, X-ray diffraction were carried ...the shape memory ...the superelasticity with a strain rate of 6 ...
7
A micromechanics-inspired constitutive model for shape-memory alloys that accounts for initiation and saturation of phase transformation
... nominal transformation strain in the martensite and the effective transformation strain of the ...macroscopic transformation strain one would see if the grains were allowed to transform ...of ...
28
Nuclear Magnetic Resonance Studies of Martensitic Phase Transformation in Ni Ti Shape Memory Alloys
... martensitic phase transformation responsible for the shape memory effect are different in Ni–Ti thin films and in bulk ...during phase transformation has been interpreted ...
7
Microstructure and Shape Memory Effect of Cu Zn Ni Shape Memory Alloys
... a shape memory alloy depend on its characteristic transformation temperatures and the extent of shape memory effect and ...the shape memory properties of SMAs are ...
7
Experimental study on two way shape memory effect training procedure for NiTiNOL shape memory alloy
... in shape memory effect (SME) which is defined as the phase transformation between the martensite phase at low temperatures, and the austenite phase at high temperatures, ...
5
Effect of Phase Transformation on the Fracture Behavior of Shape Memory Alloys
... this shape recovery is a reversible diffusionless solid to solid microstructural phase transformation from austenite to martensite and vice-versa under applied load or temperature ...the ...
106
The effect of phase transformation on fatigue crack growth of shape memory alloys
... In order to establish the problem macroscopically, fatigue crack growth experiments were conducted on Ni 2 FeGa. The results on the experimental part can be found in previous sections. The single crystals of Ni 2 FeGa ...
64
Effect of post-deformation annealing on the R-phase transformation temperatures in NiTi shape memory alloys
... the transformation behavior of the ...A→R transformation is observed in the 7 th cycle for the test with T max of 423 ...A→R transformation can be detected from the 12 th cycle on, as shown in ...
24
Effect of Phase Transformation on Stress Redistribution and Damage Evolution During Actuation Fatigue in Shape Memory Alloys
... single phase trans- formation cycle, as well as how the internal microstructure evolves throughout the entire lifetime of the SMA ...the effect of phase transforma- tion within a single phase ...
177
In Situ Study of Phase Transformation and Microstructural Evolution of Ni45Mn37In13Co5 Metamagnetic Shape Memory Alloy
... different phase transition temperature at different region of the sample which are due to the inhomogeneity of chemical composition or crystal structure at the nano-scale ...The phase transformation at ...
5
Superelastic Deformation Behaviors Based on Phase Transformation Bands in TiNi Shape Memory Alloy
... stress-induced phase transformation in TiNi SMA were presented by Shaw and Kyriakides 1) and by ...TiNi shape memory alloy of Sun 3) and Pieczyska et ...initial phase ...
7
Theoretical modelling of the effect of plasticity on reverse transformation in superelastic shape memory alloys
... Although shape memory alloy NiTi has found many important applications, especially in biomedical engineering, little information on the failure of this material existed in the ...forward ...
31
Effect of Aging on Martensitic Transformation in Ti Rich Ti Pd Shape Memory Alloy
... The effect of aging condition on the reverse transforma- tion peak temperatures is summarized in ...the transformation behavior has become ...the phase equilibrium is completed within aging for ...
5
The Influence of Heat Treatment on Microstructure and Phase Transformation Temperatures of Cu-Al-Ni Shape Memory Alloy
... However, during the casting, due to unfavourable cooling conditions, equilibrium low temperature phases can be created according to the equilibrium phase diagram of Cu-Al-Ni alloy.6,7 In[r] ...
8
Martensitic Transformation and Superelasticity of Ti Nb Pt Alloys
... However, concerns about hypersensitivity associated with dissolution of Ni ions have restricted the use of Ti-Ni alloys as an implant material. Recently, -type Ti-base alloys composed of non-toxic elements have attracted ...
7