On mechanical response of aluminum alloys in corrosive environment

Kumar, Sunil S and Londe, Neelakantha V and Kumar, Dilip K and Kittur, Md Ibrahim and Badruddin, Irfan Anjum and Faheem, Mohammed and Khan, Sher Afghan (2022) On mechanical response of aluminum alloys in corrosive environment. International Journal of Integrated Engineering, 14 (1). pp. 48-56. ISSN 2229-838X E-ISSN 2600-7916

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Abstract

Al6061T6 and Al7075T6 aluminum alloys are subjected to accelerated salt spray corrosion to evaluate the amount of degradation and the effect on mechanical behavior. The specimens were stored in a closed chamber with continuous salt spray for a period of 250 hours and 500 hours, respectively. It was observed that the oxide layer was unprotective after prolonged salt spray resulting in pitting continued with exfoliation corrosion. The tensile test results show that there was a remarkable decrease in tensile properties with exposure time. A significant reduction in tensile strength, yield strength, elongation at yield, elongation at break, and overall toughness in both the alloys was observed at 500 hours. The impact strength decreased by 14.4 % and 26.47 %, Rockwell hardness (HRB) reduced by 12.2% and 20.71% for respective alloys at 500 hours of exposure. However, there was an increasing trend in elastic stiffness which attributed to a decrease in ductility. Furthermore, it was comparatively observed that Al7075T6 is more susceptible to corrosion than Al6061T6.

Item Type:	Article (Journal)
Additional Information:	7395/97123
Uncontrolled Keywords:	Aluminum alloys, pitting, corrosion, mechanical properties
Subjects:	T Technology > T Technology (General) > T173.2 Technological change
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Dr. Sher Afghan Khan
Date Deposited:	09 Mar 2022 16:44
Last Modified:	07 Apr 2022 11:11
URI:	http://irep.iium.edu.my/id/eprint/97123

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