Process Optimization on Hardness of Precipitation Hardened Al6061Alloy Using Design of Experiments

Shankar, Gowri and Kini, Achutha U and Sharma, S S (2017) Process Optimization on Hardness of Precipitation Hardened Al6061Alloy Using Design of Experiments. Materials Science Forum, 909,. pp. 27-32. ISSN 1662-9752

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Abstract

Aluminium is ranked after iron and steel in the metal market. Aluminium 6061 alloy hasbeen selected by many designers and engineers for different kind of applications. Further, itsstrength can be improved by cold working, refinement of grains, precipitation and dispersion hardening. In this work, trials are conduced for the investigation of the effects due to agehardening parameters like, solutionizing time, temperature and time for aging on hardness of 6061Aluminium alloy using Design of xperiments. The response is predicted by using linier regression model. From the results it can be perceived that, the ageing temperature and aging time have asubstantial effect on the response whereas, solutionizing time does not have a significant effect. Fora specific set of parameters the hardness is improved from 50 to 74 BHN, resulted in an increase inhardness by about 50%.

Item Type: Article
Uncontrolled Keywords: Al6061 alloy, Design of Experiments, Precipitation hardening, Hardness
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 23 Nov 2017 05:54
Last Modified: 23 Nov 2017 05:54
URI: http://eprints.manipal.edu/id/eprint/150048

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