期刊
PHYSICS OF METALS AND METALLOGRAPHY
卷 122, 期 9, 页码 829-833出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0031918X2109009X
关键词
grain growth; grain size distribution; numerical simulation; microstructure
Grain growth in textureless material with bimodal grain size distribution has been investigated, showing that the presence of abnormally coarse crystallites can be eliminated in the final distribution. This phenomenon occurs when the number of coarse crystallites in the initial state is small and can be explained by normal grain growth in the fine-grained matrix. The size effect of matrix grains on the distribution's second maximum has been analyzed, revealing that it remains and even increases due to the inhibition of boundary migration.
Grain growth in the textureless material characterized by bimodal grain size distribution has been investigated. Grain growth in a pure material can eliminate the second maximum in the distribution, despite the presence of abnormally coarse crystallites in the initial structure. This is true when the number of coarse crystallites in the initial state is small and can be explained by normal grain growth in the fine-grained matrix. The size effect of matrix grains on the second maximum in the distribution under these conditions has been analyzed. The second maximum has been shown to remain and even increase due to the inhibition of boun-dary migration.
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