ANALYSIS OF THE EFFECTIVE AND INTERNAL CYCLIC STRESS COMPONENTS IN CAST γ-TiAl BASED ALLOY

被引：0
|
作者：
Petrenec, M. [1 ]
Polak, J. [1 ]
Kruml, T. [1 ]
Bucek, B. [1 ]
机构：
[1] Acad Sci Czech Republic, Inst Phys Mat, Brno 61662, Czech Republic
来源：
ADVANCES IN HETEROGENEOUS MATERIAL MECHANICS 2011 | 2011年
关键词：
low cycle fatigue; TiAl alloy; hysteresis loop; dislocation structure;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cyclic strain controlled multiple step tests in air have been performed on cylindrical specimens of cast gamma-based alloy Ti-48Al-2Nb-2Cr-0.82B at. % with nearly lamellar microstructure of gamma and alpha(2) phases at 23 and 750 degrees C. The objective was to analyze the internal and effective cyclic stress components which were derived from the hysteresis loops analyzed according to the statistical theory of hysteresis loop. Dislocation structures in cyclically strained specimens at room temperature were observed using TEM. Cyclic response at both temperatures was compared and discussed in relation to changes of internal and effective stress components and dislocation modes in gamma phase observed and referred in the literature.
引用
收藏
页码：921 / +
页数：2
相关论文
共 50 条
  • [41] XRD stress analysis in a-TiAl based intermetallic multicrystal
    Seiler, W
    Hoël, G
    Thomas, M
    Ji, V
    RESIDUAL STRESSES VII, PROCEEDINGS, 2005, 490-491 : 684 - 689
  • [42] Internal friction of a high-Nb gamma-TiAl-based alloy with different microstructures
    Weller, M
    Clemens, H
    Dehm, G
    Haneczok, G
    Bystrzanowski, S
    Bartels, A
    Gerling, R
    Arzt, E
    INTEGRATIVE AND INTERDISCIPLINARY ASPECTS OF INTERMETALLICS, 2005, 842 : 127 - 132
  • [43] Cyclic deformation response of austenitic Ni-based alloy: Mechanical behavior, internal stress evolution and microstructural feature
    Wang, Ning
    Yu, Hao
    Zhao, Peng
    Zhang, Jia-Min
    Gong, Jian-Guo
    Xuan, Fu-Zhen
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2022, 850
  • [44] Localised cyclic plastic deformation on translamellar fracture surfaces in a P/M γ-TiAl-based alloy
    Huang, ZW
    Bowen, P
    ACTA MATERIALIA, 1999, 47 (11) : 3189 - 3203
  • [45] Strain amplitude-dependent internal friction of as-cast high damping magnesium alloy during cyclic vibration
    Wan, Di-Qing
    RARE METALS, 2013, 32 (01) : 25 - 28
  • [46] Strain amplitude-dependent internal friction of as-cast high damping magnesium alloy during cyclic vibration
    Di-Qing Wan
    Rare Metals, 2013, 32 (01) : 25 - 28
  • [47] Strain amplitude-dependent internal friction of as-cast high damping magnesium alloy during cyclic vibration
    Di-Qing Wan
    Rare Metals, 2013, 32 : 25 - 28
  • [48] Statistical Analysis of Stress Transmission and Onset of Internal Instability under Vertical Effective Stress
    Li, Weichao
    Zhong, Qi
    Deng, Gang
    Cai, Hong
    Xie, Dingsong
    Lee, Min Lee
    INTERNATIONAL JOURNAL OF GEOMECHANICS, 2024, 24 (03)
  • [49] Residual stress effects on mechanical properties of a two phase TiAl-based intermetallic alloy
    Guo, FA
    Ji, V
    Seiler, W
    Zhang, YG
    ECRS 6: PROCEEDINGS OF THE 6TH EUROPEAN CONFERENCE ON RESIDUAL STRESSES, 2002, 404-7 : 367 - 372
  • [50] On the role of thermal exposure on the stress controlled fatigue behaviour of an intermediate strength γ-TiAl based alloy
    Huang, Z. W.
    Huang, S.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 636 : 77 - 90
12345