Aluminum alloys corrosion hydrogen embrittlement

MO Speidel, Hydrogen embrittlement and stress corrosion cracking of aluminum alloys , in Hydrogen Embrittlement and Stress Corrosion Cracking, R Gibala and RE Hehemann, Eds., American Society for Metals, Metals Park, OH, 1984, pp. 271-96. 

Ion vapor deposition of aluminum is attractive because it avoids the environmental and toxicological problems associated with cadmium. It does not cause hydrogen embrittlement of steel or solid metal embrittlement of steel or titanium, and it should be more galvanically compatible with aluminum alloy structure and avoid the exfoliation corrosion of sensitive alumimun alloy structme. However, views on the ability of alumimun to protect steel fasteners appear to vary. A view is that the presently available pure aluminum coatings are not able to provide adequate sacrificial protection to steel in a chloride ion environment, and for this reason a recommendation is made for the development of alruninrun coatings containing small amounts of zinc or other elements for improved protection. 

Kamoutsi, H., Haidemenopoulos, G. N., Bontozoglou, V, and Pantelakis, S. Corrosion-Induced Hydrogen Embrittlement in Aluminum Alloy 2024, Corrosion Science, Vol. 48, 2006, pp. 1209-24. 

Speidel, M. O. Hydrogen Embrittlement and Stress Corrosion Cracking of Aluminum Alloys , In R. Gibala and R. F. Heheman (Eds.), Hydrogen Embrittlement and Stress Corrosion Cracking, ASM, Materials Park, OH, 1992, pp. 271-96. 

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