Results 21 to 30 of about 3,389 (193)

Study of reorientation of martensite variants under stress in Ti-Ni-Cu by resistivity and by thermoelectric power techniques [PDF]

Le Journal de Physique IV, 2001
It is well known that the martensitic phase of shape memory alloys presents a self- accommodation of variants when it is obtained by simple cooling. Theses variants can be reoriented in a new configuration by applying a stress on the material. Macroscopic properties like, electrical and mechanical ones, are very sensitive to this phenomenon.
E. López Cuéllar, G. Guénin, M. Morin
openaire   +1 more source

Deformation twinning in the full-α″ martensitic Ti–25Ta–20Nb shape memory alloy [PDF]

, 2016
International audienceDeformation twinning of the Ti–25Ta–20Nb (mass%) shape memory alloy is characterized using EBSD and TEM. The selfaccommodating α″ microstructure is shown to be first deformed using \111\α″ type I and <211>α″ type II ...
Bertrand, Emmanuel, Castany, Philippe, Gloriant, Thierry, Menou, Edern, Yang, Yang   +4 more
core   +4 more sources

Magnetoresistance behavior of a ferromagnetic shape memory alloy: Ni_1.75Mn_1.25Ga [PDF]

, 2008
A negative-positive-negative switching behavior of magnetoresistance (MR) with temperature is observed in a ferromagnetic shape memory alloy Ni_1.75Mn_1.25Ga. In the austenitic phase between 300 and 120 K, MR is negative due to s-d scattering. Curiously,
Ahuja, B. L., Banik, S., Barman, S. R., Chakrabarti, Aparna, Mukhopadhyay, P. K., Pandey, D., Paulose, P. L., Rawat, R., Singh, A. K., Singh, S.   +9 more
core   +1 more source

Magnetic field induced strain assisted by stress in Ni-Fe-GaCo single crystals

EPJ Web of Conferences, 2010
Ferromagnetic shape memory alloys (FSMA) have the possibility to induced a strain by applying a magnetic field. The main advantage of the FSMA is that the strain cycling frequency is two orders of magnitude higher than coventional shape memory alloys ...
Chumlyakov Y., Kustov S., Cesari E., Dutkiewicz J., Francesc M., Pons J.   +5 more
doaj   +1 more source

Thermal effects on high-frequency magnetic-field-induced martensite reorientation in ferromagnetic shape memory alloys: An experimental and theoretical investigation [PDF]

, 2018
Ferromagnetic Shape Memory Alloys (FSMAs) exhibit large strains by the magnetic-field-induced martensite reorientation. But, due to the high-frequency field-induced cyclic frictional martensite twin boundary motion in FSMAs, the dissipation heat can ...
Chen, Xue, He, Yongjun, Moumni, Ziad, Zhang, Shaobin   +3 more
core   +5 more sources

Magnetic field-induced strain and magnetoelectric effects in sandwich composite of ferromagnetic shape memory Ni-Mn-Ga crystal and piezoelectric PVDF polymer [PDF]

, 2014
Author name used in this publication: Siu Wing OrAuthor name used in this publication: Helen Lai Wa Chan2010-2011 > Academic research: refereed > Publication in refereed journalVersion of ...
Chan, HLW, Or, DSW, Zeng, M
core   +1 more source

Effect of temperature and texture on the reorientation of martensite variants in NiTi shape memory alloys

Acta Materialia, 2017
Abstract Martensitic Ni 50 Ti 50 wires and sheets with different textures were tensile tested in the temperature range between −100 °C and 60 °C. The effect of texture and temperature on reorientation of martensite variants was investigated. After deformation, all material states were heated into the austenite regime to study their shape memory ...
Laplanche, G., Birk, T., Schneider, S., Frenzel, J., Eggeler, G.   +4 more
openaire   +1 more source

Simulation of the shape memory effect in a NiTi nano model system

, 2012
The shape memory behavior of a NiTi nanoparticle is analyzed by molecular dynamics simulations. After a detailed description of the equilibrium structures of the used model potential, the multi variant martensitic ground state, which depends on the ...
Baskes, Bhargava, Bhattacharya, Clark, Cleri, Daniel Mutter, Deng, Finnis, Hatcher, Ishida, Juan, Juan, Lai, Liang, Miyazaki, Mutter, Mutter, Nosé, Park, Peter Nielaba, Prokoshkin, Sato, Suzuki, Suzuki, Swope, Uehara, Uehara, Waitz, Waitz   +28 more
core   +1 more source

Magnetic field induced random pulse trains of magnetic and acoustic noises in martensitic single-crystal [PDF]

, 2017
K
Beke, Dezső László, Daróczi, Lajos, Piros, Eszter, Tóth, László Zoltán   +3 more
core   +1 more source

Stress-induced martensite reorientation and its related performances in trained β-Ti based shape memory alloy

Journal of Materials Research and Technology
In the present study, the influence of training on the microstructural evolution, martensitic transformation behavior and mechanical/functional properties of Ti–V–Al–Zr shape memory alloy was investigated systematically.
Xiaoyang Yi, Yanqing Wu, Guohao Zhang, Wei Liu, Yunfei Wang, Shuowen Zhang, Xiaojing Sun, Ding Yuan, Xinjian Cao, Xiao Liu, Zhiyong Gao, Xianglong Meng, Haizhen Wang   +12 more
doaj   +1 more source