Microstructural and Hardness of Spray Deposited Al-30Mg 2 Si-2Cu Alloy in Solutionized and Aged Conditions

Rudrakshi, G B and Reddy, G J and Goudar, D M and Vagmode, J and Srivastava, V C (2011) Microstructural and Hardness of Spray Deposited Al-30Mg 2 Si-2Cu Alloy in Solutionized and Aged Conditions. In: World Congress on Engineering and Technology, October 28 - November 02, 2011, Sanghai, China.

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Abstract

An Al–30Mg 2 Si- 2Cu alloy was produced by spray
casting and the secondary processing such as hot compression and heat treatment were carried out. The coarsening behavior, distribution and size of the Mg 2 Si precipitates, the influence of
subsequent heat treatment on the microstructure were investigated Uniform distribution of Mg 2 Si was achieved by spray casting. The hardness tests were conducted on spray deposited, secondary processed and heat treated alloys. The results indicate that spray casting has strong influence on microstructure and hardness of the
material. The microstructural refinement of the alloy was enhanced during hot compression. The alloying with copper lead to further increase in strength by age hardening due to precipitation Al 2 Cu phase. A significant improvement in hardness was observed after hot compression and heat treatment.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Spray forming, Al-Mg2Si composite, microstructure, characterisation
Subjects: Materials Science > Composites
Divisions: Metal Extraction and Forming
Depositing User: Dr. V.C. Srivastava
Date Deposited: 05 Jul 2012 07:36
Last Modified: 05 Jul 2012 07:36
URI: http://eprints.nmlindia.org/id/eprint/5721

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