TY - JOUR
T1 - On the stagnation of grain growth in nanocrystalline materials
AU - Li, Junjie
AU - Wang, Jincheng
AU - Yang, Gencang
PY - 2009/6
Y1 - 2009/6
N2 - 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.
AB - 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.
KW - Grain boundary energy
KW - Grain growth
KW - Nanocrystalline materials
KW - Segregation
UR - http://www.scopus.com/inward/record.url?scp=62849103886&partnerID=8YFLogxK
U2 - 10.1016/j.scriptamat.2009.02.015
DO - 10.1016/j.scriptamat.2009.02.015
M3 - 文章
AN - SCOPUS:62849103886
SN - 1359-6462
VL - 60
SP - 945
EP - 948
JO - Scripta Materialia
JF - Scripta Materialia
IS - 11
ER -