An opposite trend for collision intensity of minor-phase globules within an immiscible alloy droplet
An opposite trend for collision intensity of minor-phase globules within an immiscible alloy droplet
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不混溶合金液滴内小相球体碰撞强度的相反趋势
DOI：
10.1016/j.jallcom.2019.06.090
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发表时间：
2019-09
影响因子：
6.2
通讯作者：
Wang Nan
中科院分区：
文献类型：
--
作者：
Peng Yinli;Tian Lili;Wang Qiang;Lei Xiaowei;Yao Wenjing;Wang Nan
研究了环状温度梯度下SCN-60 wt%H2O混合物中小相球的碰撞行为，实验确定了小相球在迁移过程中碰撞强度的变化趋势。结果表明，当颗粒从样品边缘向样品中心迁移时，碰撞强度变得越来越大，这与以前的计算结果相反。我们的结果表明，虽然小相球的半径因碰撞而增大，并且随后对速度有正的贡献，但实际速度仍然减小。这表明，速度主要由温度梯度控制，而不是球体的半径。研究还发现，球体半径的增长速度随时间的延长而增加，表明碰撞变得更加频繁，其强度从样品的边缘到样品的中心逐渐增加。此外，对Fe-58 wt%Sn不相容合金采用滴管工艺进行了检验，其凝固组织与观察结果吻合较好。我们的发现为碰撞诱导的不相容合金液滴内小相球的组装提供了深入的理解。
Collision behaviors of minor-phase globule were investigated in SCN-60 wt%H2O mixture under an annular temperature gradient, and during its migration the trend for collision intensity was determined experimentally. It was found that the collision intensity became stronger and stronger when the globules migrated from the sample edge to its center, which was opposite to the previous calculation. Our results have showed that although the radius of minor-phase globule increased by collision and subsequently made a positive contribution to the velocity, the actual velocity was still reduced. This demonstrated that the velocity was dominantly controlled by temperature gradient, rather than the globule's radius. It was also found that the growth rate of globule radius was increasing with time, indicating that the collision became more frequent and its intensity increased from the sample's edge to its center. In addition, this finding was examined by Fe-58 wt%Sn immiscible alloy using drop tube processing, and the solidified microstructure agreed well with the observation result. Our findings provided an in-depth understanding to the collision-induced assembly of minor-phase globules inside an immiscible alloy droplet.
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影响因子：
4.5
作者：
O. Jegede;R. Cochrane;A. Mullis
通讯作者：
O. Jegede;R. Cochrane;A. Mullis
影响因子：
3.7
作者：
Xiaoguang Zhang;Robert H. Davis
通讯作者：
Xiaoguang Zhang;Robert H. Davis
影响因子：
9.4
作者：
Yeqing Wang;Jianrong Gao;M. Kolbe;A. Chuang;Yang Ren;D. Matson
通讯作者：
Yeqing Wang;Jianrong Gao;M. Kolbe;A. Chuang;Yang Ren;D. Matson
DOI：
10.1007/s00339-014-8654-2
发表时间：
2014-08
期刊：
Applied Physics A
影响因子：
--
作者：
W. Q. Lu;S. Zhang;J. G. Li
通讯作者：
W. Q. Lu;S. Zhang;J. G. Li
薄膜沉积过程中自组织相分离的微观结构图
影响因子：
8.6
作者：
Lu, Yong;Wang, Cuiping;Wang, Yunzhi
通讯作者：
Wang, Yunzhi