The Al-Mg-Si alloy is recognized as an engineering material
currently gaining attention in the aerospace industry due to its high
strength-to-weight ratio. The welding of these materials has been recently
improved using a technique known as thixo-joining, also referred to as
semi-solid welding. To investigate the susceptibility of the welded Al-Mg-Si to
corrosion in acidic and marine environments, various welding temperatures
(34°C, 100°C, 200°C, and 300°C) were utilized before exposure to these harsh
conditions. The preparation of the coupons adhered to accepted standards and
they were subsequently subjected to a weight loss gravimetric and linear
polarization technique for corrosion investigation. Observations indicated
improved corrosion resistance when the gravimetric approach (weight loss plot)
was used. The presence of globules, in comparison with the parent metal (PM),
served as crack arresters to the structures, thus reducing the susceptibility
to corrosion in both marine and acidic environments.
Author(s) Details
Isaac
E. Dongo
Department of Metallurgical & Materials Engineering, Kogi
State Polytechnic, Lokoja, Nigeria and Department of Metallurgical &
Materials Engineering, Federal University of Technology, Akure, Nigeria.
Ajibade
J. Omotoyinbo
Department of Metallurgical & Materials Engineering, Federal
University of Technology, Akure, Nigeria.
Akinlabi
Oyetunji
Department of Metallurgical & Materials Engineering, Federal
University of Technology, Akure, Nigeria.
Monday
I. Momoh
Department of Foundry Engineering Technology, Kogi State
Polytechnic, Lokoja, Nigeria.
Please see the book here:- https://doi.org/10.9734/bpi/caert/v7/1458
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