![]() ![]() Preliminary stress corrosion test results are reported. ![]() Metallurgical and electrochemical conditions are identified which provide reproducible and controlled parameters for stress corrosion evaluation. Process, heat treatment, and size/orientational effects on the tensile and fracture behavior were investigated. The base properties of the alloys were characterized. Stress corrosion tests of Al-Li-Cu powder metallurgy alloys are described. The relative stress-corrosion-cracking susceptibility of candidate aluminum-lithium alloys for aerospace applications 254SMO showed an excellent resistance to SCC in all conditions, except in the more acidic solutions (pH <= 1 where, in the sensitized conditions, intergranular stress corrosion cracking occurred. The behavior of 254SMO was compared to those of AISI 316L SS and Hastelloy C276. The susceptibility to SCC was evaluated by Slow Strain Rate Tests (SSRT, at 1.5 x 10-6 s-1 strain rate. The influence of salt concentration, pH values and the addition of thiosulfate was examined. ![]() Susceptibility to Stress Corrosion Cracking of 254SMO SSĭirectory of Open Access Journals (Sweden)įull Text Available The susceptibility to stress corrosion cracking (SCC of solubilized and sensitized 254SMO SS was studied in sodium chloride, and sodium fluoride solutions at 80 Â☌ and sulfuric acid solutions in presence of sodium chloride at 25 Â☌. ![]()
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