Super-gravity field assisted homogeneous distribution of sub-micron eutectic Si in Al-Si alloy
Super-gravity field assisted homogeneous distribution of sub-micron eutectic Si in Al-Si alloy
复制标题
超重力场辅助Al-Si合金中亚微米共晶Si的均匀分布
DOI：
10.1016/j.jallcom.2019.152701
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发表时间：
2020-03-15
影响因子：
6.2
通讯作者：
Liu, Jing
中科院分区：
文献类型：
--
作者：
Gan, Zhanghua;Wu, Hao;Liu, Jing
We reported an investigation of super-gravity field assisted homogenization and refinement of eutectic Si in Al-Si alloy. Our results indicated that the super-gravity could intensify the convection and greatly promote the refining effect of the conventional modifier during solidification. The orientation relationship of the eutectic Si with respect to Al matrix is adopted [1((-)) 12](Al)//[1((-)) 12](si). The high density of submicron eutectic Si (similar to 0.5 mu m in length, similar to 0.2 mu m in width) could be achieved via the combination of the sodium salt modifier and super-gravity field, which resulted in the significant enhancement of the Vickers hardness (similar to 52%). (C) 2019 Elsevier B.V. All rights reserved.
