Effect of Micro-voids on Plasticity in NiTi-alloys

被引：0
|
作者：
Olsen, J. S. [1 ]
Zhang, Z. L. [1 ]
van der Eijk, C. [2 ]
机构：
[1] Dept Struct Engn, Richard Birkelandsvei 1A, N-7491 Trondheim, Norway
[2] SINTEF Mat & Chem, N-7465 Trondheim, Norway
来源：
STATE-OF-THE-ART RESEARCH AND APPLICATION OF SMAS TECHNOLOGIES | 2009年 / 59卷
关键词：
Shape memory alloys; Stress triaxiality; Micro-voids; Plasticity; SHAPE-MEMORY ALLOYS; TRANSFORMATION;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Recent experimental investigations have indicated that commercial NiTi superelastic alloys consist of particles and inclusions which can nucleate micro-voids. Almost no study on the effect of micro-voids has been carried out in the literature. In this study the effect of micro-voids and plasticity on the behaviour of a superelastic NiTi-alloy has been investigated. Axisymmetric unit cell models with different micro-void volume fractions have been analysed subjected to various stress triaxiality states. It is shown that the onset of plasticity is located at the void edge as the maximum stress initially occurs at this position. The finite element results indicate that the existence of micro-voids can reduce the re-centring capabilities in NiTi-alloys and that this effect should be taken into consideration of constitutive equations.
引用
收藏
页码：135 / +
页数：2
相关论文
共 50 条
  • [41] Fabrication of quasi-periodic micro-voids in fused silica by single femtosecond laser pulse
    Wang, Xianhua
    Chen, Feng
    Yang, Qing
    Liu, Hewei
    Bian, Hao
    Si, Jinhai
    Hou, Xun
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2011, 102 (01): : 39 - 44
  • [42] Fabrication of quasi-periodic micro-voids in fused silica by single femtosecond laser pulse
    Xianhua Wang
    Feng Chen
    Qing Yang
    Hewei Liu
    Hao Bian
    Jinhai Si
    Xun Hou
    Applied Physics A, 2011, 102 : 39 - 44
  • [43] Micro-voids quantification for damage prediction in warm forging of biocompatible alloys using 3D X-ray CT and RVE approach
    Lu, X. Z.
    Chan, L. C.
    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2018, 258 : 116 - 127
  • [44] The Evolution of Micro-Voids in Sn37Pb Solder Joints Under Electromechanical Coupling Loading
    Wang, Shaobin
    Liu, Peng
    Cong, Sen
    Guo, Weiqi
    Zhang, Weiwei
    JOURNAL OF ELECTRONIC MATERIALS, 2024, 53 (10) : 6448 - 6455
  • [45] Improving the mechanical properties of laser powder bed fused AlSi10Mg alloys by eliminating the inevitable micro-voids via hot forging
    Wan, Jie
    Chen, Biao
    Shen, Jianghua
    Kondoh, Katsuyoshi
    Liu, Shuiqing
    Li, Jinshan
    RAPID PROTOTYPING JOURNAL, 2024, 30 (04) : 621 - 632
  • [46] MECHANISMS OF MICRO-VOIDS FORMATION CAUSED BY OPTICAL BREAKDOWN IN KCl SINGLE CRYSTALS UNDER LASER EMISSION
    Volosyuk, M. A.
    PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY, 2014, (04): : 55 - 59
  • [47] Crystal plasticity analysis of dislocation emission from micro voids
    Ohashi, T
    INTERNATIONAL JOURNAL OF PLASTICITY, 2005, 21 (11) : 2071 - 2088
  • [48] MODELING OF ULTRASONIC NONLINEARITIES FOR DEBRIS CLOUD- INDUCED MICRO-VOIDS CHARACTERIZATION: THEORETICAL ANALYSIS AND NUMERICAL VALIDATION
    Cao, Wuxiong
    Pang, Baojun
    Su, Zhongqing
    Chi, Runqiang
    Cai, Yuan
    Huang, Yefei
    PROCEEDINGS OF THE 2019 13TH SYMPOSIUM ON PIEZOELECTRICITY, ACOUSTIC WAVES AND DEVICE APPLICATIONS (SPAWDA), 2019,
  • [49] On the effect of detwinning-induced plasticity in compressive cyclic loading of NiTi shape memory alloys
    Ebrahimi, Parvin
    Arghavani, Jamal
    Naghdabadi, Reza
    McGarry, J. Patrick
    MECHANICS OF MATERIALS, 2020, 148
  • [50] Dose Dependence of Micro-Voids Distributions in Low-Temperature Neutron Irradiated Eurofer97 Steel
    Coppola, Roberto
    Klimenkov, Michael
    METALS, 2019, 9 (05)
12345