نتایج جستجو برای: superelasticity
تعداد نتایج: 267 فیلتر نتایج به سال:
Micropillar compression experiments on [001]-oriented CaFe2As2 single crystals have recently revealed the existence of superelasticity with a remarkably high elastic limit over 10%. The collapsed tetragonal phase transition, which is uni-axial contraction process in As-As bonds are formed across an intervening Ca-plane, main mechanism superelasticity. Usually, and related structural transitions...
Suzhi Li,1 Xiangdong Ding,1,2,*,† Junkai Deng,1,3 Turab Lookman,2,*,‡ Ju Li,1,4 Xiaobing Ren,1,3 Jun Sun,1 and Avadh Saxena2 1State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China 2Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA 3Ferroic Physics Group, National Institute for Materials Science, Tsukuba, 3...
We report a strategy to significantly improve the ductility and achieve large superelastic and shape memory strains in polycrystalline Cu–Al–Ni shape memory alloys that are normally brittle. We use a liquid-phase Taylor wire forming process to obtain microwires of 10–150 m diameter with a bamboo grain structure. The reduction of grain boundary area, removal of triple junctions, and introduction...
Applying a magnetic field to a ferromagnetic Ni50Mn34In16 alloy in the martensitic state induces a structural phase transition to the austenitic state. This is accompanied by a strain which recovers on removing the magnetic field, giving the system a magnetically superelastic character. A further property of this alloy is that it also shows the inverse magnetocaloric effect. The magnetic supere...
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