Electrochemical Characterization of AlLiCuMg Alloys

SILVINA G. RAMOS; ALICIA E. ARES; CLAUDIA M. MENDEZ

Phoenix; United States

Otro; Light Metals 2018; 2018

The Minerals, Metals & Materials Society (TMS)

The aluminum-lithium (Al?Li) alloys were developed with the objective of obtaining, mainly, low weight products in structural elements of planes that was later joined by the aerospace industry. They has been developed, among others, by the aeronautical industry due to its special characteristics. In the present research, aluminum-lithium-copper-magnesium alloys were solidified under different conditions of cooling rates. The microstructures were observed and measured. To determine the susceptibility to corrosion, working electrodes were prepared in different positions along the specimens and cyclic potentiodynamic polarization measurements were conducted, using NaCl 0.5 M solution at room temperature.