Effect of Precipitation Hardening and Deformation Aided Aging Treatment on Simple and Hybrid Aluminium Alloy Composites

Nagaraja, M R and Lobo, Prinster Jason and Sharma , S S and Kini, Achutha U and Chadaga, RajGopal P (2015) Effect of Precipitation Hardening and Deformation Aided Aging Treatment on Simple and Hybrid Aluminium Alloy Composites. In: National Conference on Frontiers in Mechanical Engineering, 29th April 2015, Canara Engineering College Mangalore.

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Abstract

With the increasing in demand of lightweight materials in many of the emerging industrial applications, the trends in materials deals with alloying of aluminium with other elements are necessary to provide the higher strengths, hardness needed for industrial applications. In this context aluminium alloy – silicon carbide – boron carbide composites find wide application in inner plates of ballistic vests, high pressure water jet cutter nozzle and also as Neutron absorber in nuclear reactors. Along with these applications they also possess good wear resistance, high specific strength, good thermal stability and high modulus of elasticity. In the current study,simple composites and hybrid composite were fabricated by two step stir casting technique with different weight fraction of reinforcements. The precipitation hardening treatment and cold deformation assisted age hardening known as low temperature thermomechanical treatment (LTMT)are carried out. Peak hardness of the specimen at these aging temperatures is determined. With the increase in the aging temperature, the time to reach peak hardness value decreased whereas the hardness value is also decreases.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Al 6061-B4C-SiC, Stir casting, Age hardening, Thermomechanical treatment
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 19 May 2015 09:16
Last Modified: 19 May 2015 09:16
URI: http://eprints.manipal.edu/id/eprint/142677

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