Time-resolved synchrotron tomographic quantification of deformation-induced flow in a semi-solid equiaxed dendritic Al-Cu alloy
Time-resolved synchrotron tomographic quantification of deformation-induced flow in a semi-solid equiaxed dendritic Al-Cu alloy
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DOI：
10.1016/j.scriptamat.2015.03.011
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发表时间：
2015-07-01
影响因子：
6
通讯作者：
Lee, P. D.
中科院分区：
文献类型：
--
作者：
Cai, B.;Karagadde, S.;Lee, P. D.
采用一种新颖的原位层析成像技术研究了半固态合金的流变学。通过挤压Al-15 wt.%Cu等轴合金，量化了α - al晶粒的非均匀共压，包括枝晶间通道的闭合和液体挤压物的形成。这项研究不仅为半固态变形过程中发生的微观结构变化提供了重要的见解，而且为偏析和流变模型提供了验证基准。(C) 2015材料学报Elsevier Ltd.出版。
The rheology of semi-solid alloys has been studied by a novel in situ tomographic technique. Via extruding an equiaxed Al-15 wt.%Cu alloy, the inhomogeneous coherent compression of the alpha-Al grains was quantified, including the interdendritic channel closure and formation of a liquid extrudate. This investigation not only provides important insights into the microstructural changes occurring during semi-solid deformation, but also offers a validation benchmark for segregation and rheological models. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd.