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Title of Journal: Sci China Technol Sci

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Abbravation: Science China Technological Sciences

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Science China Press

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DOI

10.1002/app.24922

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1869-1900

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Stability range of tilted dendritic arrays during

Authors: Hui Xing XiaoBin Zhao PeiPei Duan ChangLe Chen Zhi Chen KeXin Jin
Publish Date: 2014/11/03
Volume: 57, Issue: 12, Pages: 2530-2535
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Abstract

The stability range of primary spacing of the tilted dendritic arrays in directional solidification has been studied by quantitative phasefield simulations Results show that both the real growth direction and morphological shapes of dendritic arrays change with the primary spacing for different misorientation angles θ 0 It has been found that the lower limit of primary spacing is independent of θ 0 but the upper limit of primary spacing is strongly influenced by that The two kinds of tertiary branching instabilities result in different behaviors of the variation of the upper limit with misorientation angle for different pulling velocities

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