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Origin of the two-way memory effect in NiTi shape memory alloys
Scripta Metallurgica et Materialia, 1993It is now well-known that the two-way memory effect (TWME) of shape memory alloys is obtained after a thermomechanical cycling called training. Although this point is well-admitted, many controversies still subsist on the physical origin of this two-memory effect.
P.Y. Manach, D. Favier
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Journal of Intelligent Materials Systems and Structures, 2021
In this paper, shape memory alloy (SMA) bumps with two-way shape memory effect (TWSME) are trained by simple but effective training approaches, which provides a new idea for the actuations of the shock control bump (SCB) on airfoil.
Chen Zhang, H. Ji, Xing Chen, J. Qiu
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In this paper, shape memory alloy (SMA) bumps with two-way shape memory effect (TWSME) are trained by simple but effective training approaches, which provides a new idea for the actuations of the shock control bump (SCB) on airfoil.
Chen Zhang, H. Ji, Xing Chen, J. Qiu
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, 2021
A stable tensile two-way shape memory effect with a strain of (+7.0 ± 0.3) % along the [001]B2-direction upon stress-induced martensite ageing was obtained for single crystals of an Co35Ni35Al30 ferromagnetic alloy.
A. Eftifeeva +5 more
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A stable tensile two-way shape memory effect with a strain of (+7.0 ± 0.3) % along the [001]B2-direction upon stress-induced martensite ageing was obtained for single crystals of an Co35Ni35Al30 ferromagnetic alloy.
A. Eftifeeva +5 more
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Fatigue & Fracture of Engineering Materials & Structures
This study introduces a one‐dimensional phenomenological constitutive model designed to describe two‐way shape memory effect (TWSME) and its associated cyclic degradation.
Jiacheng Zhang +4 more
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This study introduces a one‐dimensional phenomenological constitutive model designed to describe two‐way shape memory effect (TWSME) and its associated cyclic degradation.
Jiacheng Zhang +4 more
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Simple device for measuring the two-way shape memory effect
Review of Scientific Instruments, 1984A simple device has been designed to measure continuously and reproducibly the amount of the shape recovery related to the two-way shape memory effect in specimens undergoing thermal cycling. Using this device, it is possible to follow the dimensional changes of the specimens, to record the exact temperatures where shape changes occur, and to evaluate ...
Z. Talmi, M. Ganor, J. Baram, J. Pelleg
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Two-way shape memory effect in a NiAl-Fe alloy
Scripta Materialia, 1996The dual phase ({beta} + {gamma}) NiAl-Fe shape memory alloys have recently been considered for their good ductility at room temperature. It was reported that the NiAl-Fe alloys quenched from high temperature show a shape recovery of 60%--80% or 90% after training, though they possess a dual phase microstructure, in which the {gamma}-phase can not ...
C.Y. Xie, L.W. Sen, T.Y. Hsu
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Understanding indentation-induced two-way shape memory effect
Journal of Materials Research, 2007Spherical indents in NiTi shape memory alloys can have reversible depth change: deeper depth in the martensitic phase at low temperature and shallower depth in the austenitic phase at high temperature. This is the indentation-induced two-way shape memory effect.
Yijun Zhang +2 more
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Buckling-controlled two-way shape memory effect in a ring-shaped bilayer
Acta Mechanica Sinica, 2019Shape memory polymers (SMPs) usually have a one-way shape memory effect. In this paper, an easy-operating method to realize a two-way shape memory effect was demonstrated in a ring-shaped bilayer structure where the two layers are SMPs with different thermal transition temperatures.
Hao Li, Xiaoyan Liang, Weibin Song
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Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Modeling, Simulation and Control of Adaptive Systems, 2015
Phenomenological model on thermo-mechanical response of shape memory alloy (SMA) strip is presented in this paper. Thermal response and transformation accompanied deformation are described by the proposed model. Newly transformation expansion tensor is defined to describe the relationship between the transformation-induced deformation of the strip and ...
Lin Hao, Jinhao Qiu, Hongli Ji, Rui Nie
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Phenomenological model on thermo-mechanical response of shape memory alloy (SMA) strip is presented in this paper. Thermal response and transformation accompanied deformation are described by the proposed model. Newly transformation expansion tensor is defined to describe the relationship between the transformation-induced deformation of the strip and ...
Lin Hao, Jinhao Qiu, Hongli Ji, Rui Nie
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Effect of hydrogen on the two-way shape memory effect in TiNi single crystals
Materials Today: Proceedings, 2017Abstract [ 1 ¯ 12 ]-oriented single crystals of Ti-51.3Ni (at. %) alloy, aged at 823 K for 1.5 h under a tensile stress of 150 MPa, have been investigated regarding the two-way shape memory effect (TWSME) in a hydrogen-free state and after hydrogenation.
Irina Kireeva +2 more
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