INFLUENCE OF HETEROGENEOUS NUCLEATION ON MICROSTRUCTURE AND KINETICS OF PRIMARY RECRYSTALLIZATION

被引:8
|
作者
NOVIKOV, VY
GAVRIKOV, IS
机构
[1] Department of Metallography, Moscow Institute of Steel and Alloys, 117936 Moscow
来源
ACTA METALLURGICA ET MATERIALIA | 1995年 / 43卷 / 03期
关键词
D O I
10.1016/0956-7151(94)00314-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The influence of heterogeneous arrangement of nucleation sites and non-simultaneous appearance of nuclei during recrystallization on size distribution of recrystallized grains is studied by computer simulation. It is shown that the log-normal distribution in two-dimensional microstructure can be obtained at a certain combination of nucleation characteristics. A possible role of the other parameters of recrystallization process in microstructure development is discussed. Despite the nucleation heterogeneity, the kinetics of recrystallization is shown to obey the Avrami equation. It is supposed that the shape of the grain size distribution should be used as a characteristic which proves the correctness of any recrystallization model.
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页码:973 / 976
页数:4
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