On the stagnation of grain growth in nanocrystalline materials

被引:32
作者
Li, Junjie [1 ]
Wang, Jincheng [1 ]
Yang, Gencang [1 ]
机构
[1] NW Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
基金
中国国家自然科学基金;
关键词
Grain growth; Segregation; Grain boundary energy; Nanocrystalline materials; SIZE-DEPENDENT SOLUTE; BOUNDARY MOTION; THERMODYNAMIC STABILIZATION; THERMAL-STABILITY; ALLOYS; DRAG; SEGREGATION; KINETICS; METALS;
D O I
10.1016/j.scriptamat.2009.02.015
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The stagnation of grain growth with solute segregation in nanocrystalline materials is often analyzed by using two kinetic models [J.E. Burke, Trans. Metall. Soc. AIME 180 (1949) 73; A. Michels, C.E. Krill, H. Ehrhardt, R. Birringer, D.T. Wu, Acta Mater. 47 (1999) 2143], in which it is supposed that solute drag stops grain growth. However, we show that the drag force in these kinetic models is not equivalent to the solute drag force, but to the reduced driving force due to the decrease in grain boundary energy. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:945 / 948
页数:4
相关论文
共 27 条
  • [1] Unraveling the nature of room temperature grain growth in nanocrystalline materials
    Ames, Markus
    Markmann, Juergen
    Karos, Rudolf
    Michels, Andreas
    Tschoepe, Andreas
    Birringer, Rainer
    [J]. ACTA MATERIALIA, 2008, 56 (16) : 4255 - 4266
  • [2] Segregation inhibited grain coarsening in nanocrystalline alloys
    Beke, DL
    Cserháti, C
    Szabó, IA
    [J]. JOURNAL OF APPLIED PHYSICS, 2004, 95 (09) : 4996 - 5001
  • [3] BURKE JE, 1949, T AM I MIN MET ENG, V180, P73
  • [4] IMPURITY-DRAG EFFECT IN GRAIN BOUNDARY MOTION
    CAHN, JW
    [J]. ACTA METALLURGICA, 1962, 10 (SEP): : 789 - &
  • [5] Size effects in surface segregation
    Cserhati, C
    Szabo, IA
    Beke, DL
    [J]. JOURNAL OF APPLIED PHYSICS, 1998, 83 (06) : 3021 - 3027
  • [6] Tailoring and patterning the grain size of nanocrystalline alloys
    Detor, Andrew J.
    Schuh, Christopher A.
    [J]. ACTA MATERIALIA, 2007, 55 (01) : 371 - 379
  • [7] SOLUTE LIMITED GRAIN-BOUNDARY MIGRATION - A RATIONALIZATION OF GRAIN-GROWTH
    GREY, EA
    HIGGINS, GT
    [J]. ACTA METALLURGICA, 1973, 21 (04): : 309 - 321
  • [8] TREATMENT OF SOLUTE DRAG ON MOVING GRAIN-BOUNDARIES AND PHASE INTERFACES IN BINARY-ALLOYS
    HILLERT, M
    SUNDMAN, B
    [J]. ACTA METALLURGICA, 1976, 24 (08): : 731 - 743
  • [9] KIREHHEIM R, 2002, ACTA MAT, V50, P413
  • [10] KRILL CE, 1995, MATER SCI FORUM, V179-, P443, DOI 10.4028/www.scientific.net/MSF.179-181.443