Effect of Duplex Ageing on the Properties of A356 Alloy Containing Rare Earth Elements |
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| Authors: | J Menghani S K Agrawal Vikram Agarwal Dhaval Bhatt |
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| Affiliation: | (1) Department of Mechanical Engineering, SVNIT, Surat, 395007, India;(2) Department of Metallurgical Engineering, M S University of Baroda, Baroda, 390001, India |
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| Abstract: | Reduced weight of automobiles for the purpose of fuel economy has encouraged the use of light metals especially aluminium
alloys. A356 Al alloy containing 7% Si and 0.3% Mg is widely used in automobile and aircraft industries due to excellent castability,
good corrosion resistance and good pressure tightness. A356 is age hardenable alloy and there is appreciable improvement in
strength and hardness achievable due to precipitation of intermetallic compound Mg2Si. In the present investigation, aluminium alloy A356 with and without rare earth (RE) addition (0.5 wt%) was subjected to
single ageing as well as double aging treatment. The results were compared for mechanical properties like hardness and ultimate
tensile strength with the material not containing RE additions. |
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