Effect of soft Bi particles on grain refinement during severe plastic deformation

被引：8
|
作者：
Jia, Hai-long [1 ]
Marthinsen, K. [1 ]
Li, Yan-jun [1 ]
机构：
[1] Norwegian Univ Sci & Technol, Dept Mat Sci & Engn, N-7491 Trondheim, Norway
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2017年 / 27卷 / 05期
关键词：
Al alloys; equal channel angular pressing (ECAP); Bi particle; grain refinement; hardness; TRANSIENT DIRECTIONAL SOLIDIFICATION; MONOTECTIC AL-BI; IMMISCIBLE ALLOYS; ALUMINUM-ALLOYS; EVOLUTION; RECRYSTALLIZATION; MICROSTRUCTURE; MECHANISMS;
D O I：
10.1016/S1003-6326(17)60114-6
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Two aluminum alloys, Al-8Zn and Al-6Bi-8Zn were subjected to equal channel angular pressing (ECAP) up to 5 passes at room temperature. The microstructural evolution and the grain refinement behavior of these alloys were systematically studied by electron backscatter diffraction (EBSD). After 5 passes of ECAP, ultrafine grained microstructures formed in both alloys. However, the grain structure in the Al-6Bi-8Zn alloy is much finer than that of Al-8Zn alloy, showing that the soft Bi particles have a strong influence on enhancing the grain refinement during ECAP. The strengths of the ECAP-processed materials were measured by hardness test and it showed that after 5 passes of ECAP, the hardness of the Al-6Bi-8Zn alloy was higher than that of the Al-8Zn alloy. The effects of soft Bi particles on the deformation behavior during ECAP and the final strength of the Al-6Bi-8Zn alloy were discussed.
引用
收藏
页码：971 / 976
页数：6
相关论文
共 50 条
  • [21] Grain refinement of pure Ti during plastic deformation
    Wu, S.
    Fan, K.
    Jiang, P.
    Chen, S.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (26): : 6917 - 6921
  • [22] Effect of grain refinement by severe plastic deformation on the next-neighbor misorientation distribution
    Toth, L. S.
    Beausir, B.
    Gu, C. F.
    Estrin, Y.
    Scheerbaum, N.
    Davies, C. H. J.
    ACTA MATERIALIA, 2010, 58 (20) : 6706 - 6716
  • [23] Grain refinement and phase transformations in Al and Fe based alloys during severe plastic deformation
    Dobatkin, SV
    ULTRAFINE GRAINED MATERIALS II, 2002, : 183 - 192
  • [24] Grain refinement and mechanical properties of nickel subjected to severe plastic deformation
    Krasilnikov, NA
    Pakiela, Z
    Lojkowski, W
    Valiev, RZ
    INTERFACIAL EFFECTS AND NOVEL PROPERTIES OF NANOMATERIALS, 2003, 94 : 51 - 54
  • [25] Mechanisms of grain refinement in aluminum alloys in the process of severe plastic deformation
    R. O. Kaibyshev
    I. A. Mazurina
    D. A. Gromov
    Metal Science and Heat Treatment, 2006, 48 : 57 - 62
  • [26] Grain Refinement Of Low Carbon Steel By Ecap Severe Plastic Deformation
    Kraus, Libor
    Zrnik, Jozef
    Fujda, Martin
    Dobatkin, S. V.
    NANOCON 2011, 2011, : 31 - 38
  • [27] Grain refinement in an aluminium-magnesium alloy by severe plastic deformation
    Rauch, EF
    Dupuy, L
    Blandin, JJ
    ADVANCED MATERIALS FORUM I, 2002, 230-2 : 239 - 242
  • [28] Extreme grain refinement by severe plastic deformation: A wealth of challenging science
    Estrin, Y.
    Vinogradov, A.
    ACTA MATERIALIA, 2013, 61 (03) : 782 - 817
  • [29] Mechanisms of grain refinement in aluminum alloys in the process of severe plastic deformation
    Kaibyshev, R. O.
    Mazurina, I. A.
    Gromov, D. A.
    METAL SCIENCE AND HEAT TREATMENT, 2006, 48 (1-2) : 57 - 62
  • [30] LIMITATIONS IN THE REFINEMENT BY SEVERE PLASTIC DEFORMATION: THE EFFECT OF PROCESSING
    Bachmaier, A.
    Hafok, M.
    Schuster, R.
    Pippan, R.
    REVIEWS ON ADVANCED MATERIALS SCIENCE, 2010, 25 (01) : 16 - 22
12345