Effect of cooling slope and manganese on the microstructure of hypereutectic Al-Si alloy with 2 %Fe

The effect of cooling slope (CS) on the microstructure of hypereutectic Al-22Si-2Fe (% w/w) alloys with 0%, 0.99%, and 1.36% Mn were studied. The results showed that primary Si particles (PSPs), needle-like Fe phases, coarse fishbone-shaped α-Al15(Fe, Mn)3Si2 phases, and eutectic Si could be refined...

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Main Authors: Li Lu, Rongfeng Zhou, Dehong Lu, Yehua Jiang, Rong Zhou
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2013-12-01
Series:Materials Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000200033&tlng=en
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author Li Lu
Rongfeng Zhou
Dehong Lu
Yehua Jiang
Rong Zhou
author_facet Li Lu
Rongfeng Zhou
Dehong Lu
Yehua Jiang
Rong Zhou
author_sort Li Lu
collection DOAJ
description The effect of cooling slope (CS) on the microstructure of hypereutectic Al-22Si-2Fe (% w/w) alloys with 0%, 0.99%, and 1.36% Mn were studied. The results showed that primary Si particles (PSPs), needle-like Fe phases, coarse fishbone-shaped α-Al15(Fe, Mn)3Si2 phases, and eutectic Si could be refined. With such a CS process, the intermetallic compounds in the alloys with different Mn/Fe ratios were examined with an optical microscope, scanning electron microscope, and X-ray diffraction. Moreover, the acicular δ-Al4(Fe, Mn)Si2 and blocky α-Al15(Fe, Mn)3Si2 phases were analyzed by transmission electron microscopy.
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spelling doaj.art-e8b4a6dabe8844859df79bd9f65e73e92022-12-21T17:22:04ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392013-12-0117251151710.1590/S1516-14392013005000198Effect of cooling slope and manganese on the microstructure of hypereutectic Al-Si alloy with 2 %FeLi Lu0Rongfeng Zhou1Dehong Lu2Yehua Jiang3Rong Zhou4Kunming University of Science and TechnologyKunming University of Science and TechnologyKunming University of Science and TechnologyKunming University of Science and TechnologyKunming University of Science and TechnologyThe effect of cooling slope (CS) on the microstructure of hypereutectic Al-22Si-2Fe (% w/w) alloys with 0%, 0.99%, and 1.36% Mn were studied. The results showed that primary Si particles (PSPs), needle-like Fe phases, coarse fishbone-shaped α-Al15(Fe, Mn)3Si2 phases, and eutectic Si could be refined. With such a CS process, the intermetallic compounds in the alloys with different Mn/Fe ratios were examined with an optical microscope, scanning electron microscope, and X-ray diffraction. Moreover, the acicular δ-Al4(Fe, Mn)Si2 and blocky α-Al15(Fe, Mn)3Si2 phases were analyzed by transmission electron microscopy.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000200033&tlng=enhypereutectic Al-Si alloyscooling slopeMn/Fe ratiointermetallic compounds
spellingShingle Li Lu
Rongfeng Zhou
Dehong Lu
Yehua Jiang
Rong Zhou
Effect of cooling slope and manganese on the microstructure of hypereutectic Al-Si alloy with 2 %Fe
Materials Research
hypereutectic Al-Si alloys
cooling slope
Mn/Fe ratio
intermetallic compounds
title Effect of cooling slope and manganese on the microstructure of hypereutectic Al-Si alloy with 2 %Fe
title_full Effect of cooling slope and manganese on the microstructure of hypereutectic Al-Si alloy with 2 %Fe
title_fullStr Effect of cooling slope and manganese on the microstructure of hypereutectic Al-Si alloy with 2 %Fe
title_full_unstemmed Effect of cooling slope and manganese on the microstructure of hypereutectic Al-Si alloy with 2 %Fe
title_short Effect of cooling slope and manganese on the microstructure of hypereutectic Al-Si alloy with 2 %Fe
title_sort effect of cooling slope and manganese on the microstructure of hypereutectic al si alloy with 2 fe
topic hypereutectic Al-Si alloys
cooling slope
Mn/Fe ratio
intermetallic compounds
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000200033&tlng=en
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AT rongfengzhou effectofcoolingslopeandmanganeseonthemicrostructureofhypereutecticalsialloywith2fe
AT dehonglu effectofcoolingslopeandmanganeseonthemicrostructureofhypereutecticalsialloywith2fe
AT yehuajiang effectofcoolingslopeandmanganeseonthemicrostructureofhypereutecticalsialloywith2fe
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