Effect of phosphor addition on eutectic solidification and microstructure of an Al-13%Si alloy
As the refiner or modifier, the master alloys containing high concentration phosphor are widely used in preparing eutectic or hypereutectic Al-Si alloys. To study the effect of phosphor addition on the eutectic solidification and microstructure of the Al-13%Si alloy, an investigation has been undert...
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doaj-3b5d5fc428d548d49385c55e28ea18d82020-11-24T23:40:12ZengFoundry Journal AgencyChina Foundry1672-64212011-11-0184418423Effect of phosphor addition on eutectic solidification and microstructure of an Al-13%Si alloyLiao HengchengZhao LeiXi XiaoAs the refiner or modifier, the master alloys containing high concentration phosphor are widely used in preparing eutectic or hypereutectic Al-Si alloys. To study the effect of phosphor addition on the eutectic solidification and microstructure of the Al-13%Si alloy, an investigation has been undertaken by means of thermal analysis and micro/macro-structure observation. Results indicate that addition of phosphor in near eutectic Al-Si alloy promotes the nucleation of eutectic but has little refinement impact on primary Si particles as expected. Conversely, both primary Si particles and eutectic Si flakes become slightly coarser in P-rich alloys. The coarsening of eutectic Si flakes ties closely to the increased eutectic growth temperature with phosphor addition. The eutectic solidification of the alloy proceeds from the near mold zone towards the center, and it is also found that a few independent nucleation regions emerge in liquid at the solidification front due to the addition of phosphor.http://www.foundryworld.com/uploadfile/2011122147118225.pdfAl-Si alloyeutectic solidificationmicrostructurethermal analysisphosphor |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Liao Hengcheng Zhao Lei Xi Xiao |
spellingShingle |
Liao Hengcheng Zhao Lei Xi Xiao Effect of phosphor addition on eutectic solidification and microstructure of an Al-13%Si alloy China Foundry Al-Si alloy eutectic solidification microstructure thermal analysis phosphor |
author_facet |
Liao Hengcheng Zhao Lei Xi Xiao |
author_sort |
Liao Hengcheng |
title |
Effect of phosphor addition on eutectic solidification and microstructure of an Al-13%Si alloy |
title_short |
Effect of phosphor addition on eutectic solidification and microstructure of an Al-13%Si alloy |
title_full |
Effect of phosphor addition on eutectic solidification and microstructure of an Al-13%Si alloy |
title_fullStr |
Effect of phosphor addition on eutectic solidification and microstructure of an Al-13%Si alloy |
title_full_unstemmed |
Effect of phosphor addition on eutectic solidification and microstructure of an Al-13%Si alloy |
title_sort |
effect of phosphor addition on eutectic solidification and microstructure of an al-13%si alloy |
publisher |
Foundry Journal Agency |
series |
China Foundry |
issn |
1672-6421 |
publishDate |
2011-11-01 |
description |
As the refiner or modifier, the master alloys containing high concentration phosphor are widely used in preparing eutectic or hypereutectic Al-Si alloys. To study the effect of phosphor addition on the eutectic solidification and microstructure of the Al-13%Si alloy, an investigation has been undertaken by means of thermal analysis and micro/macro-structure observation. Results indicate that addition of phosphor in near eutectic Al-Si alloy promotes the nucleation of eutectic but has little refinement impact on primary Si particles as expected. Conversely, both primary Si particles and eutectic Si flakes become slightly coarser in P-rich alloys. The coarsening of eutectic Si flakes ties closely to the increased eutectic growth temperature with phosphor addition. The eutectic solidification of the alloy proceeds from the near mold zone towards the center, and it is also found that a few independent nucleation regions emerge in liquid at the solidification front due to the addition of phosphor. |
topic |
Al-Si alloy eutectic solidification microstructure thermal analysis phosphor |
url |
http://www.foundryworld.com/uploadfile/2011122147118225.pdf |
work_keys_str_mv |
AT liaohengcheng effectofphosphoradditiononeutecticsolidificationandmicrostructureofanal13sialloy AT zhaolei effectofphosphoradditiononeutecticsolidificationandmicrostructureofanal13sialloy AT xixiao effectofphosphoradditiononeutecticsolidificationandmicrostructureofanal13sialloy |
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1725510678824878080 |