Effect of heat treatment on the crystal structure, martensitic transformation and magnetic properties of Mn53Ni25Ga22 ferromagnetic shape memory alloy

被引：7
作者：
Dong, G. F. [1 ]
Gao, Z. Y. [2 ]
机构：
[1] Dalian Univ, Dept Mech, Dalian 116622, Peoples R China
[2] Harbin Inst Technol, Sch Mat Sci & Engn, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2016年 / 399卷
基金：
中国国家自然科学基金;
关键词：
Heat treatment; Martensitic transformation; Intermetallic compound; Saturation magnetizations; FIELD-INDUCED STRAIN; PHASE;
D O I：
10.1016/j.jmmm.2015.09.075
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, the effect of heat treatment on crystal structure, martensitic transformation, thermodynamic behavior and magnetic properties of polycrystalline Mn53Ni25Ga22 ferromagnetic shape memory alloy was systematically investigated. The results show that the heat treatment has obvious effect on martensitic transformation temperatures, crystal structure and hysteresis loops. Heat treatment greatly effects on transformation temperatures due to modified composition of the matrix. Martensitic transformation temperature, saturation magnetization decreased with the increase heat treatment temperature, reaching their minimum values at the heat treatment temperature of 1173 K for 12 h. Curie temperature of maximum values obtained at solution-treated of 1173 K for 12 h. In other word, increasing heat treatment temperature and time has an effect on Curie temperature. In addition, the annealed alloy Mn53Ni25Ga22 may completely dissolve in vacuum tubes at 1173 K for 12 h. It is found that the studied alloys have some (Mn,Ni)(4) Ga-type compound precipitates, which can be seen dispersing both in grain interiors and on grain boundaries at other heat treatment process. Lastly, Rietveld analysis shows the good agreement between experiment and calculated data of XRD patterns. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：185 / 191
页数：7
相关论文
共 16 条
  • [1] Martensitic transition, ferrimagnetism and Fermi surface nesting in Mn2NiGa
    Barman, S. R.
    Banik, S.
    Shukla, A. K.
    Kamal, C.
    Chakrabarti, Aparna
    [J]. EPL, 2007, 80 (05)
  • [2] Effect of aging on martensitic transformation, microstructures and mechanical properties in off-stoichiometric Mn-Ni-Ga alloys
    Cai, W.
    Zhang, J.
    Gao, Z. Y.
    Sui, J. H.
    Dong, G. F.
    [J]. ACTA MATERIALIA, 2011, 59 (06) : 2358 - 2367
  • [3] Effect of γ precipitates on martensitic transformation and magnetic properties in aged Mn-Ni-Ga alloys
    Cai, W.
    Zhang, J.
    Gao, Z. Y.
    Sui, J. H.
    [J]. APPLIED PHYSICS LETTERS, 2008, 92 (25)
  • [4] Compositional instability of β-phase in Ni-Mn-Ga alloys
    Chernenko, VA
    [J]. SCRIPTA MATERIALIA, 1999, 40 (05) : 523 - 527
  • [5] Effect of aging on phase transformation and magnetic properties of Mn53Ni25Ga22 ferromagnetic shape memory alloy
    Dong, G. F.
    Gao, Z. Y.
    Sui, J. H.
    Cai, W.
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2015, 374 : 469 - 473
  • [6] Ordering, martensitic and ferromagnetic transformations in Ni-Al-Mn Heusler shape memory alloys
    Kainuma, R
    Gejima, F
    Sutou, Y
    Ohnuma, I
    Ishida, K
    [J]. MATERIALS TRANSACTIONS JIM, 2000, 41 (08): : 943 - 949
  • [7] Nanowell surface enhanced Raman scattering arrays fabricated by soft-lithography for label-free biomolecular detections in integrated microfluidics
    Liu, GL
    Lee, LP
    [J]. APPLIED PHYSICS LETTERS, 2005, 87 (07)
  • [8] The microstructure and martensitic transformation of Co-Ni-Ga-Ta ferromagnetic shape memory alloys
    Liu, J
    Zheng, HX
    Xia, MX
    Li, JG
    [J]. SCRIPTA MATERIALIA, 2005, 52 (10) : 955 - 958
  • [9] Liu J., 2008, APPL PHYS LETT, V92
  • [10] Ma L., 2008, APPL PHYS LETT, V92
12