Viscous nature of deformation of ultra-fine grain aluminum processed by equal-channel angular pressing

被引：65
|
作者：
Miyamoto, H [1 ]
Ota, K [1 ]
Mimaki, T [1 ]
机构：
[1] Doshisha Univ, Fac Engn, Dept Mech Engn, Kyotanabe 9100321, Japan
来源：
SCRIPTA MATERIALIA | 2006年 / 54卷 / 10期
关键词：
ultra-fine rained microstructure; aluminum; equal-channel angular pressing (ECAP); strain-rate sensitivity; low temperature deformation;
D O I：
10.1016/j.scriptamat.2006.02.016
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Deformation and microstructural evolution of ultra-fine grained (UFG) aluminum produced by equal-channel angular pressing has been examined over a wide range of strain-rates at room temperature and liquid nitrogen temperature (77 K). Elevated strain-rate sensitivity of UFG structures at both temperatures was revealed and compared with the coarse-grain counterparts. Results indicated that this enhanced viscous nature may be attributed in part to an increase in dislocation density as well as to some sort of reaction related to grain boundary diffusivity. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1721 / 1725
页数：5
相关论文
共 50 条
  • [31] Principles of grain refinement in magnesium alloys processed by equal-channel angular pressing
    Roberto B. Figueiredo
    Terence G. Langdon
    Journal of Materials Science, 2009, 44 : 4758 - 4762
  • [32] The link between microstructure and creep in aluminum processed by equal-channel angular pressing
    Saxl, I.
    Sklenicka, V.
    Ilucova, L.
    Svoboda, M.
    Dvorak, J.
    Kral, P.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 503 (1-2): : 82 - 85
  • [33] Microstructures of Aluminum and Copper Single Crystals Processed by Equal-Channel Angular Pressing
    Furukawa, Minoru
    Horita, Zenji
    Langdon, Terence G.
    THERMEC 2009, PTS 1-4, 2010, 638-642 : 1946 - +
  • [34] Plastic forming of the equal-channel angular pressing processed 6061 aluminum alloy
    Kim, W. J.
    Sa, Y. K.
    Kim, H. K.
    Yoon, U. S.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 487 (1-2): : 360 - 368
  • [35] Superplasticity in alloys processed by equal-channel angular pressing
    Berbon, PB
    Tsenev, NK
    Valiev, RZ
    Furukawa, M
    Horita, Z
    Nemoto, M
    Langdon, TG
    SUPERPLASTICITY AND SUPERPLASTIC FORMING 1998, 1998, : 127 - 134
  • [36] Increase in Total Elongation Caused by Pure Shear Deformation in Ultra-Fine-Grained Cu Processed by Equal-Channel Angular Pressing
    Matsutani, Ryosuke
    Nakada, Nobuo
    Onaka, Susumu
    METALS, 2020, 10 (05)
  • [37] An investigation of deformation in aluminum single crystals using equal-channel angular pressing
    Furukawa, M
    Fukuda, Y
    Oh-Ishi, K
    Horita, Z
    Langdon, TG
    THERMEC'2003, PTS 1-5, 2003, 426-4 : 2711 - 2716
  • [38] Diffusion in ultra-fine-grained CoCrFeNiMn high entropy alloy processed by equal-channel angular pressing
    Jiang, Yao
    Liu, Yuwei
    Zhou, Hongbo
    Taheriniya, Shabnam
    Bian, Baixue
    Rogal, Lukasz
    Wang, Jing Tao
    Divinski, Sergiy
    Wilde, Gerhard
    JOURNAL OF MATERIALS SCIENCE, 2024, 59 (14) : 5805 - 5817
  • [39] The principles of grain refinement in equal-channel angular pressing
    Langdon, Terence G.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 462 (1-2): : 3 - 11
  • [40] Cyclic response of fine grain 5056 Al-Mg alloy processed by equal-channel angular pressing
    Patlan, V
    Higashi, K
    Kitagawa, K
    Vinogradov, A
    Kawazoe, M
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 319 : 587 - 591
12345