scholarly journals Effect of a magnetic field on the martensitic transition of Cu-Al-Mn alloys

2001 ◽  
Vol 11 (PR8) ◽  
pp. Pr8-257-Pr8-262
Author(s):  
J. Marcos ◽  
A. Planes ◽  
L. I. Manosa ◽  
A. Labarta ◽  
B. J. Hattink
Keyword(s):  
Magnetic Field ◽  
Martensitic Transition

Effect of magnetic field on martensitic transition of Ni46Mn41In13 Heusler alloy

2006 ◽  
Vol 88 (12) ◽  
pp. 122507 ◽  
Author(s):  
K. Oikawa ◽  
W. Ito ◽  
Y. Imano ◽  
Y. Sutou ◽  
R. Kainuma ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Heusler Alloy ◽  
Martensitic Transition

Hysteresis effects in the magnetic-field-induced reverse martensitic transition in magnetic shape-memory alloys

2010 ◽  
Vol 108 (4) ◽  
pp. 043914 ◽  
Author(s):  
Thorsten Krenke ◽  
Seda Aksoy ◽  
Eyüp Duman ◽  
Mehmet Acet ◽  
Xavier Moya ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Martensitic Transition ◽  
Magnetic Shape Memory ◽  
Magnetic Shape Memory Alloys ◽  
The Magnetic Field

Influence of Fe doping and magnetic field on martensitic transition in Ni–Mn–Sn melt-spun ribbons

2016 ◽  
Vol 107 ◽  
pp. 9-16 ◽  
Author(s):  
C.O. Aguilar-Ortiz ◽  
D. Soto-Parra ◽  
P. Álvarez-Alonso ◽  
P. Lázpita ◽  
D. Salazar ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Martensitic Transition ◽  
Fe Doping ◽  
Melt Spun ◽  
Melt Spun Ribbons

Magnetization study of the kinetic arrest of martensitic transformation in as-quenched Ni52.2Mn34.3In13.5 melt spun ribbons

2012 ◽  
Vol 1485 ◽  
pp. 149-154 ◽  
Author(s):  
F.M. Lino-Zapata ◽  
J.L. Sánchez Llamazares ◽  
D. Ríos-Jara ◽  
A.G. Lara-Rodríguez ◽  
T. García-Fernández
Keyword(s):  
Magnetic Field ◽  
Martensitic Transformation ◽  
Temperature Cycling ◽  
Zero Field ◽  
Martensitic Transition ◽  
Magnetization Study ◽  
Melt Spun ◽  
Kinetic Arrest ◽  
Melt Spun Ribbons ◽  
Field Cooling

ABSTRACTThe kinetic arrest of martensitic transformation (MT) has been observed in as-solidified Ni52.2Mn34.3In13.5 melt spun ribbons. The main characteristics of this unusual field-induced magneto-structural phenomenon have been determined through a dc magnetization study. The sample studied was fabricated by rapid solidification using the melt spinning technique at a high quenching rate of 48 ms-1. At room temperature, it is a single phase austenite (AST) with the bcc B2-type crystal structure and Curie temperature of TCA=285 K. With decreasing temperature, the austenite phase transforms into the martensite phase (MST) with TCM≈185 K at a starting martensitic transition temperature of MS=275 K. A moderate but progressive kinetic arrest of the AST to MST transformation has been observed for magnetic field values above H=10 kOe and was studied up to Hmax= 90 kOe. The metastable character of the non-equilibrium field-cooled state is revealed by the decreasing behavior of the saturation magnetization under a large magnetic field of 50 kOe after temperature cycling from 10 K to 150 K. The total magnetization difference Δσ between the zero field-cooling and field-cooling pathways of the temperature dependence of magnetization shows irreversible and reversible components and the former decreases with decreasing temperature.

scholarly journals Tailoring of Magnetocaloric Effect in Ni45.5Mn43.0In11.5 Metamagnetic Shape Memory Alloy

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
W. O. Rosa ◽  
L. González ◽  
J. García ◽  
T. Sánchez ◽  
V. Vega ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetocaloric Effect ◽  
Annealing Temperature ◽  
Thermal Hysteresis ◽  
Annealing Treatment ◽  
Martensitic Transition ◽  
Time Treatment ◽  
Highly Sensitive ◽  
Short Time ◽  
Low Magnetic Field

We investigate the direct and inverse magnetocaloric effect in Ni45.5Mn43.0In11.5 Heusler alloy ribbons comparing the results obtained for the as-quenched sample with the ones after different annealing procedures. An enhancement and shift of the entropy maximum to near room temperature is observed in all annealed samples. A remarkable magnetocaloric effect is observed in samples with short-time treatment (10 minutes) and at the lowest annealing temperature. We show that the suppressing of uncompensated martensitic transition and thermal hysteresis are both influenced by the heat treatment. Also, an improvement on Curie’s temperature is observed and, at low magnetic field, it has been risen up to 310 K. Our results demonstrate that the martensitic transformation is highly sensitive to the applied magnetic field and also to the annealing treatment, which means that the magnetocaloric effect can be tuned showing different behaviors for each sample.

Effect of External Fields on the Martensitic Transformation in Ni-Mn Based Heusler Alloys

2008 ◽  
Vol 52 ◽  
pp. 189-197 ◽  
Author(s):  
Xavier Moya ◽  
Lluís Mañosa ◽  
Antoni Planes ◽  
Seda Aksoy ◽  
Mehmet Acet ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Hydrostatic Pressure ◽  
Martensitic Transformation ◽  
Applied Magnetic Field ◽  
Heusler Alloys ◽  
Applied Pressure ◽  
Large Change ◽  
Entropy Change ◽  
Martensitic Transition ◽  
External Fields

In this paper, we discuss the possibility of inducing a martensitic transition by means of an applied magnetic field or hydrostatic pressure in Ni-Mn based Heusler shape memory alloys. We report on the shift of the martensitic transition temperatures with applied magnetic field and applied pressure and we show that it is possible to induce the structural transformation in a Ni50Mn34In16 alloy by means of both external fields due to: (i) the low value of the entropy change and (ii) the large change of magnetization and volume, which occur at the martensitic transition.

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