对在微重力条件下获取的Al-In(95wt-％)偏晶合金的显微组织特征进行了分析,结果表明,在空间制取的试样的Al枝晶中,还存在着大量的In质点;并且这些质点的分布具有某种规律性,由此形成了与地基样品显微组织上的明显差异,反映出一种与重力效应相关的材料凝固特性。
The microstructural feature of Al-In monotectic alloy processed undermicrogravity has been investigated in comparison between space and ground-basedsamples. It was found that in the space sample, there are a lot of In particles inAl dendrite, but no more in the ground-based one. Moreover, the In particles dis-tribute with regularity and the Al dendrite has an obvious boundary layer markedby a string of particles. Thus, the distinction between them may reflect the chara-cteristics of the solid/liquid interface during solidification under different gravityconditions.
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