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The effect of metallic addition on mechanical property of aluminum (LM6) alloy

Ahmad, Roslee and Asmael, M. B. A. and Sadeghi, R. and Mohamad, H. and Harun, Zawati and Sulaiman, Hasan (2013) The effect of metallic addition on mechanical property of aluminum (LM6) alloy. Applied Mechanics and Materials, 465. pp. 958-961. ISSN 16627482

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Abstract

This article investigates the effects of addition of alloying element on the impact toughness of as-cast aluminum (LM6) alloy. Presence of 0.1 wt.% Cr increases the toughness up to 38%. In fact the sharp tips Fe intermetallics which have needle shape act as stress raisers with a general reduction of the ductility and ultimate tensile strength. On the other hand by increasing the Cr content in the base alloy the size distribution of the compounds becomes more spread. Therefore addition of Cr improves toughness impact by two mechanisms. First eliminating harmful β-intermetallics and second providing microstructure with more spread particles.

Item Type: Article
Uncontrolled Keywords: aluminium alloy, chromium, hardness, mechanical property
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
Depositing User: Normajihan Abd. Rahman
Date Deposited: 25 Jan 2017 07:24
Last Modified: 25 Jan 2017 07:24
URI: http://eprints.uthm.edu.my/id/eprint/8288
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