ABSTRACT

During melting process of aluminum alloy containing lithium, without any type of protection of the surface against a contact with the atmosphere of the furnace, there is an interaction with oxygen, water vapor, carbon oxide, and dioxide (Table 2.5). As it has been discussed in Chapter 2, films formed on the surface are not protective in their nature [76,77], which is why hydrogen created by the reaction with water vapors will be enriching the molten. Lithium, being a hydride-forming element, should increase the solubility of hydrogen in aluminum [78]. Magnesium also increases the solubility of hydrogen in aluminum [79].