Microstructure and martensitic transformation of Ni-Mn-Ga-Ti ferromagnetic shape memory alloys

被引：15
|
作者：
Dong, G. R. [1 ]
Cai, W. [1 ]
Gao, Z. Y. [1 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 465卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
Ni-Mn-Ga alloy; Ferromagnetic shape memory alloys; Martensitic transformation; Aging; Precipitates;
D O I：
10.1016/j.jallcom.2007.10.138
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effect of Ti addition on the microstructure and martensitic transformation of polycrystalline Ni53Mn23.5Ga23.5-xTix (x=0, 0.5, 2, 3.5, 5) ferromagnetic shape memory alloys was investigated by scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD). The results show that Ni-Mn-Ga-Ti alloys exhibit thermoelastic martensitic transformations. The martensitic transformation temperatures of Ni53Mn23.5Ga23.5-xTix alloys increase with the increase of Ti content, while the martensite structure of these alloys is five-layered martensite at room temperature. In addition, some Ti-rich precipitates are observed in aged Ni53Mn23.5Ga23.5-xTix alloys. (C) 2007 Elsevier B.V. All tights reserved.
引用
收藏
页码：173 / 176
页数：4
相关论文
共 50 条
  • [1] Microstructure and martensitic transformation of Ni-Mn-Ga-Ti ferromagnetic shape memory alloys
    Dong, G.F.
    Cai, W.
    Gao, Z.Y.
    [J]. Journal of Alloys and Compounds, 2008, 465 (1-2): : 173 - 176
  • [2] Phase transformation and magnetic properties of Ni-Mn-Ga-Ti ferromagnetic shape memory alloys
    Dong, G. F.
    Gao, Z. Y.
    Tan, C. L.
    Sui, J. H.
    Cai, W.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 508 (01) : 47 - 50
  • [3] Martensitic transformation and mechanical properties in an aged Ni-Mn-Ga-Ti ferromagnetic shape memory alloy
    Gao, Z. Y.
    Dong, G. F.
    Cai, W.
    Sui, J. H.
    Feng, Y.
    Li, X. H.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 481 (1-2) : 44 - 47
  • [4] 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.
    [J]. JOURNAL OF MATERIALS SCIENCE, 2010, 45 (20) : 5490 - 5494
  • [5] Martensitic and magnetic transformation in Ni-Mn-Ga-Co ferromagnetic shape memory alloys
    Cong, D. Y.
    Wang, S.
    Wang, Y. D.
    Ren, Y.
    Zuo, L.
    Esling, C.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 473 (1-2): : 213 - 218
  • [6] Microstructure and martensitic transformation of Ni-Fe-Ga-Si ferromagnetic shape memory alloys
    Huo, Y. Q.
    Li, J. G.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 480 (02) : 230 - 233
  • [7] 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
  • [8] CRYSTALLOGRAPHIC FEATURES DURING MARTENSITIC TRANSFORMATION IN Ni-Mn-Ga FERROMAGNETIC SHAPE MEMORY ALLOYS
    Cong, D. Y.
    Zhang, Y. D.
    Esling, C.
    Wang, Y. D.
    Zhao, X.
    Zuo, L.
    [J]. MATERIALS PROCESSING AND TEXTURE, 2009, 200 : 397 - 403
  • [9] Martensitic transformation and mechanical properties of Ni-Mn-Ga-Y ferromagnetic shape memory alloys
    Cai, W.
    Gao, L.
    Liu, A. L.
    Sui, J. H.
    Gao, Z. Y.
    [J]. SCRIPTA MATERIALIA, 2007, 57 (07) : 659 - 662
  • [10] Microstructure, martensitic transformation and mechanical properties of Ni50Mn30Ga20-xCux ferromagnetic shape memory alloys
    Tan, C. L.
    Dong, G. F.
    Gao, L.
    Sui, J. H.
    Gao, Z. Y.
    Cai, W.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 538 : 1 - 4
12345