Impact on Solidification Dendrite Growth by Interfacial Atomic Motion Time with Phase Field Method

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The Phase Field model of solidification processes was carried out coupled with temperature field model. The influence of interface atomic time on dendrite growth morphology in undercooled melt was simulated with pure nickel. The experimental results show that when the interface atomic motion time parameter is minor, the liquid-solid interfaces were unstable, disturbance can be amplified easily so the complicated side branches will grow, and the disturbance speed up the dendrite growth. With the increase of , the liquid-solid interfaces become more stable and finally the smooth dendrite morphology can be obtained.

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Periodical:

Edited by:

Yafang Han, Xuefeng Liu and Guanghong Lv

Pages:

660-667

DOI:

10.4028/www.scientific.net/MSF.749.660

Citation:

Y. H. Zhao et al., "Impact on Solidification Dendrite Growth by Interfacial Atomic Motion Time with Phase Field Method", Materials Science Forum, Vol. 749, pp. 660-667, 2013

Online since:

March 2013

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Price:

$38.00

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