ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

The formation of ?-FeSiAl5 and Be---Fe phases in Al---7Si---0.3Mg alloy containing Be

Murali, S and Raman, KS and Murthy, KSS (1995) The formation of ?-FeSiAl5 and Be---Fe phases in Al---7Si---0.3Mg alloy containing Be. In: Materials Science and Engineering A, 190 (1-2). pp. 165-172.

[img] PDF
The_formation.pdf - Published Version
Restricted to Registered users only

Download (1238Kb) | Request a copy
Official URL: http://dx.doi.org/10.1016/0921-5093(94)09602-S

Abstract

Thermal analysis and interrupted quench experiments have been carried out to study the formation of beta-FeSiAl5 and (Be-Fe)-BeSiFe2Al8 phases in Al-7Si-0.3Mg alloy with and without Be addition. In the base alloy with 0.6% Fe (without Be addition), a needle- and plate-shaped beta-phase is present in the interdendritic regions and is formed by a ternary eutectic reaction. In the Be- added alloy with 0.6% Fe, a Be-Fe phase of Chinese script and polygon shapes grows along with the primary alpha-Al dendrites, leading to superior mechanical properties. It is proposed that this Be-Fe phase is formed by a peritectic reaction. Be addition has also resulted in some grain refinement.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Iron;Silicon;Aluminium;Beryllium;Magnesium;Alloys
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 27 May 2011 05:15
Last Modified: 27 May 2011 05:15
URI: http://eprints.iisc.ernet.in/id/eprint/37961

Actions (login required)

View Item View Item