Effects of additions of small amounts of fourth elements on structure, crystal structure and shape recovery of CuZnAl shape memory alloys

Shape memory polymers own many advantages compared with traditional shape memory alloys or ceramics. In order to improve their shape recovery stress and realize a stable recovery response during the deployable process, the structure of SMP sandwich beam composed of two metallic skin and one SMP core is considered. The recovery behaviors of pure SMP and SMP beams reinforced by one-layer metallic skin are also discussed for comparison. The results confirm that the deployable properties of SMP matrix can be significantly improved by using sandwich structure.

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Crystal structure and high-temperature magnetoplasticity in the new Ni–Mn–Ga–Cu magnetic shape memory alloys

Scripta Materialia ◽

10.1016/j.scriptamat.2006.12.019 ◽

2007 ◽

Vol 56 (7) ◽

pp. 565-568 ◽

Cited By ~ 37

Author(s):

I. Glavatskyy ◽

N. Glavatska ◽

A. Dobrinsky ◽

J.-U. Hoffmann ◽

O. Söderberg ◽

...

Keyword(s):

Crystal Structure ◽

High Temperature ◽

Shape Memory Alloys ◽

Shape Memory ◽

Magnetic Shape Memory ◽

Magnetic Shape Memory Alloys

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Crystal structure of intermediate structures in shape-memory alloys as realization of patterns of algebraic geometry

Metal Science and Heat Treatment ◽

10.1007/s11041-007-0060-3 ◽

2007 ◽

Vol 49 (7-8) ◽

pp. 327-333

Author(s):

V. S. Kraposhin ◽

A. L. Talis ◽

Nguen Van Thuan ◽

O. A. Belyaev

Keyword(s):

Crystal Structure ◽

Algebraic Geometry ◽

Shape Memory Alloys ◽

Shape Memory

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Crystal structure and physical properties of magnetic shape memory alloys Ni50 − x Cu x Mn29Ga21

Physics of the Solid State ◽

10.1134/s1063783413120160 ◽

2013 ◽

Vol 55 (12) ◽

pp. 2471-2478 ◽

Cited By ~ 4

Author(s):

N. I. Kourov ◽

V. G. Pushin ◽

A. V. Korolev ◽

V. V. Marchenkov ◽

E. B. Marchenkova ◽

...

Keyword(s):

Crystal Structure ◽

Shape Memory Alloys ◽

Physical Properties ◽

Shape Memory ◽

Magnetic Shape Memory ◽

Magnetic Shape Memory Alloys

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DETERMINATION OF CRYSTAL STRUCTURE AND CRYSTALLOGRAPHIC CHARACTERISTICS IN Ni-Mn-Ga FERROMAGNETIC SHAPE MEMORY ALLOYS

International Journal of Modern Physics B ◽

10.1142/s0217979209061603 ◽

2009 ◽

Vol 23 (06n07) ◽

pp. 1771-1776

Author(s):

D. Y. CONG ◽

Y. D. ZHANG ◽

C. ESLING ◽

Y. D. WANG ◽

X. ZHAO ◽

...

Keyword(s):

Crystal Structure ◽

Shape Memory Alloys ◽

Shape Memory ◽

High Performance ◽

Room Temperature ◽

Martensitic Structure ◽

Magnetic Shape Memory ◽

Ferromagnetic Shape Memory Alloys ◽

Electron Backscattered Diffraction ◽

Ferromagnetic Shape Memory

Ni - Mn - Ga ferromagnetic shape memory alloys (FSMAs) have received great attention during the past decade due to their giant magnetic shape memory effect and fast dynamic response. The crystal structure and crystallographic features of two Ni - Mn - Ga alloys were precisely determined in this study. Neutron diffraction measurements show that Ni 48 Mn 30 Ga 22 has a Heusler austenitic structure at room temperature; its crystal structure changes into a seven-layered martensitic structure when cooled to 243K. Ni 53 Mn 25 Ga 22 has an I4/mmm martensitic structure at room temperature. Electron backscattered diffraction (EBSD) analyses reveal that there are only two martensitic variants with a misorientation of ~82° around <110> axis in each initial austenite grain in Ni 53 Mn 25 Ga 22. The investigation on crystal structure and crystallographic features will shed light on the development of high-performance FSMAs with optimal properties.

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