Structure and mechanical properties of aging Al-Li-Cu-Zr-Sc-Ag alloy after severe plastic deformation by high-pressure torsion

被引：0
|
作者：
L. I. Kaigorodova
D. Yu. Rasposienko
V. G. Pushin
V. P. Pilyugin
S. V. Smirnov
机构：
[1] Russian Academy of Sciences,Institute of Metal Physics, Ural Branch
[2] Russian Academy of Sciences,Institute of Machine Science, Ural Branch
来源：
The Physics of Metals and Metallography | 2015年 / 116卷
关键词：
severe plastic deformation; high-pressure torsion; aging; recrystallization; supersaturated solid solution decomposition; nanocrystalline structure; boundaries; phase; grain dislocations; vacancies; microhardness;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The structural and phase transformations have been studied in aging commercial aluminum-lithium alloy Al-1.2 Li-3.2 Cu-0.09 Zr-0.11 Sc-0.4 Ag-0.3 Mg in the as-delivered state and after severe plastic deformation by torsion for 1, 5 and 10 revolutions under a high pressure of 4 GPa. Deformation-induced nanofragmentation and dynamic recrystallization have been found to occur in the alloy. The degree of recrystallization increases with deformation. Nanofragmentation and recrystallization processes are accompanied by the deformation-induced decomposition of solid solution and changes in both the nucleation mechanism of precipitation and the phase composition of the alloy. The influence of a nanostructured nanophase state of the alloy on its mechanical properties (microhardness, plasticity, elastic modulus, and stiffness) is discussed.
引用
收藏
页码：346 / 355
页数：9
相关论文
共 50 条
  • [1] Structure and mechanical properties of aging Al-Li-Cu-Zr-Sc-Ag alloy after severe plastic deformation by high-pressure torsion
    Kaigorodova, L. I.
    Rasposienko, D. Yu.
    Pushin, V. G.
    Pilyugin, V. P.
    Smirnov, S. V.
    PHYSICS OF METALS AND METALLOGRAPHY, 2015, 116 (04) : 346 - 355
  • [2] Effect of annealing on the structure and properties of Al-Li-Cu-Zr-Sc-Ag alloy subjected to severe plastic deformation
    Kaigorodova, L. I.
    Rasposienko, D. Yu.
    Pushin, V. G.
    Pilyugin, V. P.
    Smirnov, S. V.
    PHYSICS OF METALS AND METALLOGRAPHY, 2015, 116 (09) : 932 - 941
  • [3] Structure of aging Al-Li-Cu-Zr-Sc-Ag alloy after severe plastic deformation and long-term storage
    Kaigorodova, L. I.
    Rasposienko, D. Yu.
    Pushin, V. G.
    Pilyugin, V. P.
    Smirnov, S. V.
    PHYSICS OF METALS AND METALLOGRAPHY, 2015, 116 (11) : 1108 - 1115
  • [4] Influence of Severe Plastic Deformation on the Structure and Properties of Al–Li–Cu–Mg–Zr–Sc–Zn Alloy
    L. I. Kaigorodova
    D. Yu. Rasposienko
    V. G. Pushin
    V. P. Pilyugin
    S. V. Smirnov
    Physics of Metals and Metallography, 2018, 119 : 161 - 168
  • [5] Effect of annealing on the structure and properties of Al–Li–Cu–Zr–Sc–Ag alloy subjected to severe plastic deformation
    L. I. Kaigorodova
    D. Yu. Rasposienko
    V. G. Pushin
    V. P. Pilyugin
    S. V. Smirnov
    The Physics of Metals and Metallography, 2015, 116 : 932 - 941
  • [6] Influence of Severe Plastic Deformation on the Structure and Properties of Al-Li-Cu-Mg-Zr-Sc-Zn Alloy
    Kaigorodova, L. I.
    Rasposienko, D. Yu.
    Pushin, V. G.
    Pilyugin, V. P.
    Smirnov, S. V.
    PHYSICS OF METALS AND METALLOGRAPHY, 2018, 119 (02) : 161 - 168
  • [7] Structure of aging Al–Li–Cu–Zr–Sc–Ag alloy after severe plastic deformation and long-term storage
    L. I. Kaigorodova
    D. Yu. Rasposienko
    V. G. Pushin
    V. P. Pilyugin
    S. V. Smirnov
    The Physics of Metals and Metallography, 2015, 116 : 1108 - 1115
  • [8] Effect of Annealing on the Structure and Properties of the Aging Al-Li-Cu-Mg-Zr-Sc-Zn Alloy Subjected to Megaplastic Strain
    Kaigorodova, L. I.
    Rasposienko, D. Yu.
    Pushin, V. G.
    Pilyugin, V. P.
    Smirnov, S. V.
    PHYSICS OF METALS AND METALLOGRAPHY, 2019, 120 (02) : 157 - 163
  • [9] Effect of Annealing on the Structure and Properties of the Aging Al–Li–Cu–Mg–Zr–Sc–Zn Alloy Subjected to Megaplastic Strain
    L. I. Kaigorodova
    D. Yu. Rasposienko
    V. G. Pushin
    V. P. Pilyugin
    S. V. Smirnov
    Physics of Metals and Metallography, 2019, 120 : 157 - 163
  • [10] Structural and Phase Transformations in Al-Li-Cu-Mg-Zr-Sc-Zn Alloy upon Storage after Megaplastic Deformation
    Kaigorodova, L. I.
    Rasposienko, D. Yu.
    Pushin, V. G.
    Pilyugin, V. P.
    PHYSICS OF METALS AND METALLOGRAPHY, 2019, 120 (12) : 1200 - 1206
12345