Influence of aging on phase transformation and microstructure of Ni50.3Ti29.7Hf20 high temperature shape memory alloy

被引：20
|
作者：
Prasher, Meenu [1 ]
Sen, Debasis [2 ]
机构：
[1] Bhabha Atom Res Ctr, Glass & Adv Mat Div, Bombay 400085, Maharashtra, India
[2] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 615卷
关键词：
Shape memory; Martensitic phase transformation; Precipitation; Transmission electron microscopy; Small-angle scattering; Hardness; ANGLE NEUTRON-SCATTERING; BEHAVIOR;
D O I：
10.1016/j.jallcom.2014.06.109
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：
We report the effect of aging on phase transformation temperature and mechanical strength of Ni50.3Ti29.7Hf20 high temperature shape memory alloy. Aging of the alloy at 550 degrees C and 650 degrees C increases the martensite phase transformation temperature. Transmission Electron Microscopy and quantitative investigation of microstructure by small-angle scattering confirm the improved hardness of the alloy on aging. Aging at 550 degrees C results in significant volume fraction of fine Ni-rich precipitates. Further, aging at 650 degrees C gives rise to coarsening of the precipitates vis-a-vis reduction in hardness. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：469 / 474
页数：6
相关论文
共 50 条
  • [21] Research on the synergistic improvement mechanism of plasticity and superelasticity of the Ni50.3Ti29.7Hf20 high temperature shape memory alloy by rolling and electric pulse coupling treatment
    Yin, Haichen
    Huang, Jincheng
    Zhang, Xin
    Feng, Zhihao
    Wang, Guangchun
    Liu, Shan
    Li, Jianhui
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2025, 35 : 1651 - 1662
  • [22] High temperature internal friction in Ni50.3Ti29.7Zr20 shape memory alloy
    Zuo, Shungui
    Wu, Riming
    Pang, Guobo
    Yang, Yanping
    Jin, Mingjiang
    INTERMETALLICS, 2019, 109 : 174 - 178
  • [23] Thermal expansion of martensite in Ti29.7Ni50.3Hf20 shape memory alloy
    Shuitcev, A.
    Vasin, R. N.
    Balagurov, A. . M.
    Li, L.
    Bobrikov, I. A.
    Tong, Y. X.
    INTERMETALLICS, 2020, 125
  • [24] Nanostructured Ti29.7Ni50.3Hf20 high temperature shape memory alloy processed by high-pressure torsion
    A.Shuitcev
    D.V.Gunderov
    B.Sun
    L.Li
    R.Z.Valiev
    Y.X.Tong
    JournalofMaterialsScience&Technology, 2020, 52 (17) : 218 - 225
  • [25] Influence of limiting the actuation strain on the functional fatigue behavior of Ni50.3Ti29.7Hf20high temperature shape memory alloy
    Tugrul, H. Onat
    Saygili, Hasan H.
    Kockar, Benat
    JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 2021, 32 (02) : 219 - 227
  • [26] Nanostructured Ti29.7Ni50.3Hf20 high temperature shape memory alloy processed by high-pressure torsion
    Shuitcev, A.
    Gunderov, D., V
    Sun, B.
    Li, L.
    Valiev, R. Z.
    Tong, Y. X.
    JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 52 : 218 - 225
  • [27] Microstructure and transformation related behaviors of a Ni45.3Ti29.7Hf20Cu5 high temperature shape memory alloy
    Karaca, H. E.
    Acar, E.
    Ded, G. S.
    Saghaian, S. M.
    Basaran, B.
    Tobe, H.
    Kok, M.
    Maier, H. J.
    Noebe, R. D.
    Chumlyakov, Yi.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 627 : 82 - 94
  • [28] A Comparative Study of Ni49.9Ti50.1 and Ni50.3Ti29.7Hf20 Tube Actuators
    J. S. Owusu-Danquah
    A. F. Saleeb
    B. Dhakal
    S. A. Padula
    Journal of Materials Engineering and Performance, 2015, 24 : 1726 - 1740
  • [29] Effect of Hf/Zr Ratio on Shape Memory Properties of High Temperature Ni50.3Ti29.7(Hf,Zr)20 Alloys
    Bigelow, G. S.
    Benafan, O.
    Garg, A.
    Noebe, R. D.
    SCRIPTA MATERIALIA, 2021, 194
  • [30] A Comparative Study of Ni49.9Ti50.1 and Ni50.3Ti29.7Hf20 Tube Actuators
    Owusu-Danquah, J. S.
    Saleeb, A. F.
    Dhakal, B.
    Padula, S. A., II
    JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2015, 24 (04) : 1726 - 1740
12345