Compressive Response of Polycrystalline NiCoMnGa High-Temperature Meta-magnetic Shape Memory Alloys

Karaca, H.; Turabi, A.; Basaran, B.; Pathak, A.; Dubenko, I.; Ali, N.; Chumlyakov, Y.; Li, P.
October 2013
Journal of Materials Engineering & Performance;Oct2013, Vol. 22 Issue 10, p3111
Academic Journal
The effects of the addition of quaternary element, Co, to polycrystalline NiMnGa alloys on their magnetic and shape memory properties have been investigated. NiCoMnGa polycrystalline alloys have been found to demonstrate good shape memory and superelasticity behavior under compression at temperatures greater than 100 °C with about 3% transformation strain and low-temperature hysteresis. It is also possible to train the material to demonstrate a large two-way shape memory effect.


Related Articles

  • Martensitic and magnetic transformations of Ni[sub 2] MnGa-based shape-memory alloys. Inoue, K.; Yamaguchi, Y.; Ohoyama, K.; Note, R.; Enami, K. // Applied Physics A: Materials Science & Processing;Dec2002 Supplement, Vol. 74 Issue 6, ps1061 

    After the observation of a shape-memory phenomenon of a Heusler-type single crystal, Ni[sub 2.18]Mn[sub 0.82]Ga alloy, we carried out powder neutron diffraction of this alloy by changing the temperature. Rietveld analysis of the diffraction patterns revealed that the martensitic transformation...

  • Thermom�canical Behavior of Polycristalline Shape Memor Alloys in Martensitic Transformation. Hessissen, Loubna; Essaaidi, Mohamed // European Journal of Scientific Research;Nov2008, Vol. 23 Issue 3, p474 

    The main goal of this work is to describe the thermomechanical behavior of a polycrystalline shape memory alloy (SMA), and more particularly the one associated with martensitic transformations. The numerical simulation of this behavior will make it possible to determine the response to a given...

  • Exchange bias and its training effect in the martensitic state of bulk polycrystalline Ni49.5Mn34.5In16. Wang, B. M.; Liu, Y.; Wang, L.; Huang, S. L.; Zhao, Y.; Yang, Y.; Zhang, H. // Journal of Applied Physics;Aug2008, Vol. 104 Issue 4, p043916 

    Exchange bias phenomena are observed in the bulk polycrystalline Ni49.5Mn34.5In16 alloy in which ferromagnetic and antiferromagnetic phases coexist in the martensitic state. Both the exchange bias field and coercivity are strongly dependent on temperature. The training effect of the exchange...

  • Almost compatible X-microstructures in CuAlNi shape memory alloy. Stupkiewicz, Stanisław; Górzyńska-Lengiewicz, Anna // Continuum Mechanics & Thermodynamics;Mar2012, Vol. 24 Issue 2, p149 

    A systematic study of a specific martensitic microstructure, called the X-microstructure, is carried out with the focus on the CuAlNi shape memory alloy undergoing the cubic-to-orthorhombic transformation. The set of all crystallographically distinct candidate X-microstructures is determined,...

  • Internal friction peak associated with the interface motion in the martensitic transformation of CuAlNiMnTi shape memory alloy. Gong, C. L.; Han, F. S.; Li, Z.; Wang, M. P. // Journal of Applied Physics;7/15/2007, Vol. 102 Issue 2, p023521 

    Two internal friction peaks were observed in a CuAlNiMnTi polycrystalline shape memory alloy during the martensitic transformation through an incomplete phase transformation method, of which the high-temperature peak PH is discussed in the present study. It has been found that the PH peak is...

  • Elastic behavior during early stage of β phase decomposition in a Cu–Al–Ni shape memory alloy. Recart, V.; Pérez-Landazábal, J. I.; Sánchez-Alarcos, V. // Applied Physics Letters;6/6/2005, Vol. 86 Issue 23, p231903 

    The precipitation of γ1 phase modifies the characteristics of the martensitic transformation in Cu-based shape memory alloys. In the early stage of decomposition, the knowledge of elastic constants of γ1 phase is of special interest due to the elastic interaction between martensite...

  • Martensitic Transformation and Shape Memory Effect of NiCoMnSn High Temperature Shape Memory Alloy. Chen, F.; Tong, Y.; Lu, X.; Tian, B.; Li, L.; Zheng, Y. // Journal of Materials Engineering & Performance;Dec2012, Vol. 21 Issue 12, p2509 

    This article studies the dependence of martensitic transformation on Mn:Sn ratio in NiCoMnSn alloy and the shape memory behavior of NiCoMnSn in detail. The results show that all the transformation temperatures show a linear decrease with the decrease of Mn:Sn ratio. The similar tendency is also...

  • Microstructure and martensitic transformation behavior of a constant-strain aged Ni—Mn—Ga—Ti magnetic shape memory alloy. Dong, G. F.; Gao, Z. Y.; Tan, C. L.; Cai, W.; Sui, J. H. // Journal of Materials Science;Oct2010, Vol. 45 Issue 20, p5490 

    The Ni53Mn23.5Ga18.5Ti5 ferromagnetic shape memory alloy has been aged under 2% constant-strain at various temperatures for 3 h, and the microstructure and martensitic transformation behaviors have been investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM),...

  • Influence of volume magnetostriction on the thermodynamic properties of Ni-Mn-Ga shape memory alloys. Kosogor, Anna; L'vov, Victor A.; Cesari, Eduard // Journal of Applied Physics;10/7/2015, Vol. 118 Issue 13, p133904-1 

    In the present article, the thermodynamic properties of Ni-Mn-Ga ferromagnetic shape memory alloys exhibiting the martensitic transformations (MTs) above and below Curie temperature are compared. It is shown that when MT goes below Curie temperature, the elastic and thermal properties of alloy...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics