NTRS - NASA Technical Reports Server
A potentiodynamic study of aluminum-lithium alloys in an aqueous sodium chloride environmentThe characteristics of the potentiodynamic curves for Al-Li alloys in 3.5 percent NaCl aqueous solution are explained and the electrochemical parameters of the potentiodynamic technique are correlated to observed pitting and intergranular cracking behavior. It is shown that the oxygen content of the sodium chloride electrolyte plays an important role in the electrochemical behavior of Al-Li alloys. The potentiodynamic behavior of the alloys is found to be insensitive to variation in compositional content and heat treatment, both of which affect the stress-corrosion behavior. Stringer oxide particle attack and random pitting are observed. It is shown that alternate-immersion exposure prior to potentiodynamic polarization may offer a means of assessing susceptibility to stress-corrosion cracking.
Tsao, C.-H. T. (San Jose State Univ. CA, United States) Pizzo, P. P. (San Jose State University San Jose, CA, United States)
August 12, 2013
March 1, 1985
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