Martensite evolution in a NiTi shape memory alloy when thermal cycling under an applied load

被引：54
|
作者：
Jones, N. G. [1 ]
Dye, D. [1 ]
机构：
[1] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2BP, England
来源：
INTERMETALLICS | 2011年 / 19卷 / 10期
基金：
英国工程与自然科学研究理事会;
关键词：
Shape-memory effects; Martensitic transformations; Crystallographic texture; Diffraction; X-RAY; TRANSFORMATION; TEXTURE; DEFORMATION; STRESS; PHASE; TINI; DIFFRACTION; BEHAVIOR;
D O I：
10.1016/j.intermet.2011.03.032
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 microstructural evolution of a near equiatomic NiTi shape memory alloy has been studied by in situ synchrotron diffraction, whilst being thermally cycled under an applied load. The martensite texture was found to be cyclically dynamic and an elongation of the sample was observed with each thermal cycle. The martensite formed when cooling under load exhibited progressive variant selection, in an attempt to accommodate the applied stress, accompanied by strain relaxation of the material. The characteristic transformation temperatures were found to decrease with cycling, possibly as a result of the generation and accumulation of dislocations. The magnitude of elongation, variant selection, lattice relaxation and damage accumulation were found to increase as a function of applied stress and their rate decrease with cycle number. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1348 / 1358
页数：11
相关论文
共 50 条
  • [1] Texture development and strain hysteresis in a NiTi shape-memory alloy during thermal cycling under load
    Ye, B.
    Majumdar, B. S.
    Dutta, I.
    ACTA MATERIALIA, 2009, 57 (08) : 2403 - 2417
  • [2] Effect of hafnium content and cycling under an applied axial stress on the creep and martensite strain of NiTi based shape memory alloy wires
    Johnson Controls Inc, Milwaukee, United States
    Journal De Physique. IV : JP, 1997, 7 (05): : 5 - 483
  • [3] The effect of hafnium content and cycling under an applied axial stress on the creep and martensite strain of NiTi based shape memory alloy wires
    Thoma, PE
    Zhang, C
    Boehm, JJ
    Zee, RH
    JOURNAL DE PHYSIQUE IV, 1997, 7 (C5): : 483 - 488
  • [4] Effect of Thermal Cycling under Load on Martensite Transformation and Two-way Shape Memory Effect in a TiNi Alloy
    Liming WANG
    JournalofMaterialsScience&Technology, 2001, (02) : 263 - 266
  • [5] Effect of thermal cycling under load on martensite transformation and two-way shape memory effect in a TiNi alloy
    Wang, LM
    Zheng, YF
    Cai, W
    Meng, XL
    Zhao, LC
    JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2001, 17 (02) : 263 - 266
  • [6] Heat of transformation of an NiTi shape memory alloy under load
    da Silva, EP
    ZEITSCHRIFT FUR METALLKUNDE, 2002, 93 (04): : 293 - 297
  • [7] Martensite Strain Memory in the Shape Memory Alloy Nickel-Titanium Under Mechanical Cycling
    K. Kim
    S. Daly
    Experimental Mechanics, 2011, 51 : 641 - 652
  • [8] Study of the effect of thermal cycling under constant stress on R-phase in NiTi shape memory alloy
    Uchil, J
    Mahesh, KK
    Kumara, KG
    SMART MATERIALS, STRUCTURES, AND SYSTEM, PTS 1 AND 2, 2003, 5062 : 891 - 898
  • [9] Martensite Strain Memory in the Shape Memory Alloy Nickel-Titanium Under Mechanical Cycling
    Kim, K.
    Daly, S.
    EXPERIMENTAL MECHANICS, 2011, 51 (04) : 641 - 652
  • [10] Thermomechanical cycling of a NiTi shape memory alloy-macroscopic response and microstructural evolution
    Benafan, O.
    Noebe, R. D.
    Padula, S. A., II
    Brown, D. W.
    Vogel, S.
    Vaidyanathan, R.
    INTERNATIONAL JOURNAL OF PLASTICITY, 2014, 56 : 99 - 118
12345