Permeability of dendrite network of cubic alloys
Permeability of dendrite network of cubic alloys
复制标题
立方合金枝晶网络的磁导率
DOI：
10.1179/mst.1989.5.11.1148
复制
发表时间：
1989
期刊：
影响因子：
--
通讯作者：
T. Okamoto
中科院分区：
文献类型：
--
作者：
C. Liu;K. Murakami;T. Okamoto
本文用一种具有bcc和fcc金属合金柱状枝晶结构的单向凝固石蜡-石蜡有机二元合金测量了枝晶间液体的渗透率。对于平行于和垂直于柱状枝晶的流动，液体体积分数从0.21到0.22的渗透率与根据先前获得的液体体积分数> 0.27的经验公式计算的值相当好地一致。因此，该公式适用于宽范围的液体体积分数。渗透率与液体体积分数的立方近似成正比。当液相体积分数< 0·20时，渗透率随液相体积分数的减小而急剧下降。在本工作中得到的磁导率被证实适用于bcc和fcc金属合金系统。MST/1028
The permeability for liquid in interdendritic space was measured using a unidirectionally frozen borneol–paraffin organic binary alloy the columnar dendrite structure of which is the same as that of bcc and fcc metallic alloys. For flow parallel to and normal to columnar dendrites, the permeability for volume fractions of liquid from 0·21 to 0·22 is in fairly good agreement with the value calculated from the empirical formulae obtained previously for volume fractions of liquid > 0·27. Thus, the formulae are applicable over a wide range of liquid volume fractions. The permeability is approximately proportional to the cube of the volume fraction of liquid. When the volume fraction of liquid is < 0·20, the permeability begins to decrease steeply with decreasing volume fraction of liquid. The permeability obtained in the present work is confirmed to be applicable to bcc and fcc metallic alloy systems. MST/1028