TITLE

Stress-strain characteristics in Ni–Ga–Fe ferromagnetic shape memory alloys

AUTHOR(S)
Sutou, Y.; Kamiya, N.; Omori, T.; Kainuma, R.; Ishida, K.; Oikawa, K.
PUB. DATE
February 2004
SOURCE
Applied Physics Letters;2/23/2004, Vol. 84 Issue 8, p1275
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Tensile and compressive stress–strain characteristics for Ni–Ga–Fe ferromagnetic shape memory alloys at several temperatures were investigated by mechanical test and a critical stress versus temperature diagram was obtained. The crystal structure of the martensite phase obtained by tensile-stress-induced martensitic transformation was estimated from the degree of the transformation strain. Stress-induced martensite transformed from the parent phase with an L2[sub 1] structure showed a 14M structure by tensile stress and by further applying stress, the 14M structure martensitically was transformed into an L1[sub 0] structure. Moreover, it was found in the compressive test that variant rearrangement occurred by very low compressive stress less than 3 MPa, which is similar to the phenomenon seen in Ni–Mn–Ga alloys. © 2004 American Institute of Physics.
ACCESSION #
12292677

 

Related Articles

  • Rate dependence of temperature fields and energy dissipations in non-static pseudoelasticity. Yan, Y.; Yin, H.; Sun, Q.; Huo, Y. // Continuum Mechanics & Thermodynamics;Nov2012, Vol. 24 Issue 4-6, p675 

    The temperature fields and the energy dissipations of shape memory alloys during the stress-induced martensitic transformations are studied theoretically and experimentally. The effect of the loading rate is analyzed. It was found that the temperature field inside a shape memory alloy sample...

  • Development of Stress-Induced Martensitic Transformation in TiNi Shape Memory Alloy. Pieczyska, Elzbieta; Staszczak, Maria; Dunić, Vladimir; Slavković, Radovan; Tobushi, Hisaaki; Takeda, Kohei // Journal of Materials Engineering & Performance;Jul2014, Vol. 23 Issue 7, p2505 

    TiNi shape memory alloy (SMA) was subjected to tension at strain-controlled test on quasistatic testing machine. The nucleation, development, and saturation of the stress-induced martensitic transformation were investigated, taking into account the obtained dependency of mechanical parameters...

  • Ab initio investigation of twin boundary motion in the magnetic shape memory Heusler alloy Ni2MnGa. Gruner, Markus; Entel, Peter; Opahle, Ingo; Richter, Manuel // Journal of Materials Science;Jun2008, Vol. 43 Issue 11, p3825 

    Magnetic shape memory (MSM) alloys, which transform martensitically below the Curie temperature in the ferromagnetic (FM) state, represent a new class of actuators. In Ni2MnGa, unusually large magnetic field-induced strains of about 10% have been observed. This effect is related to a high...

  • Mechanisms of deformation localization and mechanical twinning under the conditions of phase instability of a crystal in stress fields. Tyumentsev, A.; Korotaev, A.; Pinzhin, Yu.; Litovchenko, I.; Surikova, N. // Russian Physics Journal;Aug2004, Vol. 47 Issue 8, p818 

    A new mechanism of the deformation and reorientation of a crystal has been studied experimentally and theoretically. This mechanism, which is effective in strain localization mechanical twinning bands of metal alloys and intermetallides, is a mechanism of dynamic phase (direct plus reverse...

  • Influence of reactive stresses on thermodynamics and kinetics of martensitic transitions in single crystals of the shape memory Cu-Al-Ni alloy. Nikolaev, V.; Egorov, V.; Malygin, G.; Pul'nev, S. // Physics of the Solid State;Nov2010, Vol. 52 Issue 11, p2419 

    The heat of the β′-β-martensitic transition in single crystals of the alloy Cu-13.5 wt % Al-4.0 wt % Ni was studied under conditions of a constrained shape memory deformation and emergence of reactive stresses. The experiments were performed with samples bended in the form of a...

  • Metastable effects on martensitic transformation in SMA. Torra, V.; Auguet, C.; Isalgue, A.; Carreras, G.; Lovey, F. // Journal of Thermal Analysis & Calorimetry;May2013, Vol. 112 Issue 2, p777 

    The NiTi SMA was studied by temperature (mainly at 373 K) and by stress-temperature aging. The temperature induces monotonic changes in Rs transformation temperature near 10-20 K/year. The simultaneous stress/temperature aging produced strong changes in the stress-strain cycles and in the...

  • Work performance in TiNi alloy during heat cycling in the temperature range of B2 ↔ R martensitic transformation. Belyaev, S.; Resnina, N.; Anshukova, K. // Technical Physics Letters;Mar2013, Vol. 39 Issue 3, p284 

    The possibility of useful work performance in a TiNi alloy during heat cycling in the temperature range of the B2 ↔ R martensitic transformation has been studied. In the regime of work performance during heat cycling, the alloy sample was cooled under a constant applied stress of 0, 50,...

  • Behavior of the nickel-titanium alloys with the shape memory effect under conditions of shock wave loading. Razorenov, S.; Garkushin, G.; Kanel', G.; Kashin, O.; Ratochka, I. // Physics of the Solid State;Apr2011, Vol. 53 Issue 4, p824 

    The behavior of the TiNi and TiNi alloys with shape memory effects has been studied under submicrosecond shock wave loading in the temperature range from −80 to 160°C, which includes both the regions of the stable state of the specimens in the austenite and martensite phases and the...

  • Yield stress asymmetry in [001] TiNi single crystals. Surikova, N.; Tyumentsev, A.; Lysenko, O. // Doklady Physics;Nov2007, Vol. 52 Issue 11, p587 

    The article discusses the study which examines the assumption that the asymmetry of titanium-nickel (TiNi) alloys' stress can support the asymmetry in their yield stress under the conditions of plastic deformation according to the mechanical twinning mechanism. It employs an electron-microscopic...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics