Influence of calcium on the microstructure and properties of an Al-7Si-0.3Mg-xFe alloy

Sreeja Kumari, S S; Pillai, R M; Nogita, K; Dahle, A K; Pai, B C

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dc.contributor.author	Sreeja Kumari, S S
dc.contributor.author	Pillai, R M
dc.contributor.author	Nogita, K
dc.contributor.author	Dahle, A K
dc.contributor.author	Pai, B C
dc.date.accessioned	2016-01-18T07:56:46Z
dc.date.available	2016-01-18T07:56:46Z
dc.date.issued	2006
dc.identifier.citation	Metallurgical and Materials Transactions A 37(8):2581-2587;Aug 2006	en_US
dc.identifier.issn	1073-5623
dc.identifier.uri	http://ir.niist.res.in:8080/jspui/handle/123456789/2162
dc.description.abstract	The effect of Ca addition on the microstructure, physical characteristics (density/porosity), and mechanical properties (tensile and impact strength) has been investigated in an Al-7Si-0.3Mg-xFe (x = 0.2, 0.4, and 0.7) alloy. The size of Al-Fe intermetallic platelets (beta-Al5FeSi) increased with increasing Fe content. The addition of Ca modified the eutectic microstructure and also reduced the size of intermetallic Fe-platelets, causing improved elongation and impact strengths. A low level of Ca addition (39 ppm) reduced the porosity of the alloys. The tensile strength was decreased marginally with Ca addition. However, Ca addition improved the ductility of the alloy by 18.3, 16.7, and 44 pet and the impact strength by 44, 48, and 15.8 pct for Fe contents of 0.2, 0.4, and 0.7 pct, respectively.	en_US
dc.language.iso	en	en_US
dc.publisher	The Minerals, Metals & Materials Society	en_US
dc.subject	AL-SI alloys	en_US
dc.subject	Casting alloy	en_US
dc.subject	Fe	en_US
dc.subject	Intermetallics	en_US
dc.subject	Solidification	en_US
dc.subject	Porosity	en_US
dc.title	Influence of calcium on the microstructure and properties of an Al-7Si-0.3Mg-xFe alloy	en_US
dc.type	Article	en_US