Deformation assisted Heat treatment and Tensile related properties on Al 6061 alloy

Preetham, S and Sharma , S S and Gowri Shankar , M C (2015) Deformation assisted Heat treatment and Tensile related properties on Al 6061 alloy. In: National Conference on Frontiers in Mechanical Engineering, 29th April 2015, Canara Engineering College Mangalore.

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Al 6061 alloys have attracted attention of many researchers and scientists because of their response to heat treatment. The only notable heat treatment to nonferrous alloys of this group is age hardening with or without deformation. The strength and hardness of Aluminum metal alloys can be enhanced by the formation of the extremely small uniformly dispersed particles of second phase within the original phase matrix. This is accomplished by the appropriate heat treatment called precipitation hardening or age hardening. Age hardening comprises solutionizing followed by ageing below the solvus temperature of the given alloy. Ageing facilitates the diffusion of solute atoms to form intermetallics from the super saturated solid solution. The other heat treatment employed here is Low temperature thermo-mechanical treatment (LTMT) i.e., Cold rolling assisted age hardening. The present work shows the variation in the mechanical properties upon undergoing age hardening & cold rolling. The variation of the hardness and tensile strength with the ageing time for both ageing temperatures of 1250C and 1750C with and without cold deformation were investigated and peak hardness values were noted in each ageing temperatures and results were analyzed. In every test 5 trials were performed and the average of 3 consistent readings are taken as the outcome.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Age hardening, Aluminium alloys, Dislocation, mechanical properties, precipitation
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 19 May 2015 09:14
Last Modified: 19 May 2015 09:14

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