The interrelated effect of initial melt undercooling, solute trapping and solute drag on the grain growth mechanism of as-solidified Ni-B alloys

Z. Chen, Y. Y. Tang, Q. Chen, R. X. Cui, F. Liu, Z. H. Zhang

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摘要

The interrelated effects of initial melt undercooling, solute trapping and solute drag on the grain growth mechanism was investigated in as-solidified Ni-B alloys. The supersaturated granular grains were prepared by employing the glass fluxing and subsequent rapid quenching. Subjected anneal to the as-quenched grains, an alternant grain growth manner was detected with increasing initial melt undercooling, i.e. normal grain growth → abnormal grain growth → normal grain growth. In combination of the solute trapping model of undercooled melt and solute drag model of solid-state grain growth, it can be concluded that when PG ≪ PD or PG ≪ PD, the normal grain growth occurred and when PG ≈ PD, the abnormal grain growth occurred.

源语言英语
页(从-至)561-566
页数6
期刊Journal of Alloys and Compounds
610
DOI
出版状态已出版 - 15 10月 2014

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