Martensitic transformation in Ni-Mn-Ga alloy under high magnetic fields

被引：14

作者：

Chernenko, Volodymyr A. ^{[1
]}

Lvov, Victor A.

Kanomata, Takeshi

Kakeshita, Tomoyuki

Koyama, Keiichi

Besseghini, Stefano

机构：

[1] Inst Magnetism, UA-03142 Kiev, Ukraine

[2] Taras Shevchenko Univ, Dept Radiophys, UA-03022 Kiev, Ukraine

[3] Tohoku Gakuin Univ, Fac Engn, Dept Appl Phys, Tagajo, Miyagi 9858537, Japan

[4] Osaka Univ, Grad Sch Engn, Dept Mat Sci & Engn, Suita, Osaka 5650871, Japan

[5] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[6] CNR, IENI, I-23900 Lecce, Italy

来源：

MATERIALS TRANSACTIONS | 2006年 / 47卷 / 03期

关键词：

ferromagnetic shape-memory alloy; martensitic transformation; high magnetic field; Landau theory;

D O I：

10.2320/matertrans.47.635

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An effect of magnetic field on the martensitic transformation (MT) temperature in ferromagnetic shape memory Ni49.4Mn27.7Ga22.9 single crystal with the MT temperature 285 K is studied by measuring and theoretical treatment of the magnetization versus temperature dependencies in a wide range of the high magnetic fields higher than saturating one. In this way, a linear approximation of the field dependence of MT temperature was proved for the high-field range. The linear increase of transformation temperature is characterized by the slope of 3.5 x 10(-2) K/kOe. This value is essentially larger than the value 2 x 10(-2) K/kOe reported by Gonzales-Comas et al. [Phys. Rev. B 60 (1999) 7085-7090] for the Ni49.5Mn25.4Ga25.1 alloy with a low MT temperature. This difference is in an agreement with the predictions of the Landau theory.

引用

页码：635 / 638

页数：4

共 15 条

[1] Martensitic transformations in Ni-Mn-Ga system affected by external fields [J].

Chernenko, V ;

Babii, O ;

L'vov, V ;

McCormick, PG .

SHAPE MEMORY MATERIALS, 2000, 327-3 :485-488

[2] Ferromagnetism of thermoelastic martensites: Theory and experiment [J].

Chernenko, VA ;

L'vov, VA ;

Zagorodnyuk, SP ;

Takagi, T .

PHYSICAL REVIEW B, 2003, 67 (06)

[3] THE DEVELOPMENT OF NEW FERROMAGNETIC SHAPE-MEMORY ALLOYS IN NI-MN-GA SYSTEM [J].

CHERNENKO, VA ;

CESARI, E ;

KOKORIN, VV ;

VITENKO, IN .

SCRIPTA METALLURGICA ET MATERIALIA, 1995, 33 (08) :1239-1244

[4]

Chernenko VA, 2000, INT J APPL ELECTROM, V12, P3

[5]

CHERNENKO VA, 1992, INT C MART TRANSF MO, P1205

[6] Premartensitic and martensitic phase transitions in ferromagnetic Ni2MnGa [J].

Gonzàlez-Comas, A ;

Obradó, E ;

Mañosa, L ;

Planes, A ;

Chernenko, VA ;

Hattink, BJ ;

Labarta, A .

PHYSICAL REVIEW B, 1999, 60 (10) :7085-7090

[7] Magnetostriction of martensite [J].

James, RD ;

Wuttig, M .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1998, 77 (05) :1273-1299

[8] Giant magnetostriction in ferromagnetic shape-memory alloys [J].

Kakeshita, T ;

Ullakko, K .

MRS BULLETIN, 2002, 27 (02) :105-109

[9] Magnetic properties and magnetostructural phase transitions in Ni2+xMn1-xGa shape memory alloys [J].

Khovailo, VV ;

Novosad, V ;

Takagi, T ;

Filippov, DA ;

Levitin, RZ ;

Vasil'ev, AN .

PHYSICAL REVIEW B, 2004, 70 (17) :1-6

[10]

KIM J, 2006, ACTA MAT, V54, P439

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