Quantification of the chemical reactivity of molten nitrate salts with heat treatable aluminum alloys

This work explores the conditions for safe heat treatment of aluminum alloys containing lithium and magnesium in molten sodium nitrate (NaNO3) bath furnaces, where industrial accidents may occur. Using calorimetry coupled to classical thermodynamics, strength thermodynamics when analyzing thermal curves was demonstrated through a series small-scale analyses various contact with nitrate. system selected illustrate reactions that lead severe violent effect phenomena. idealized binary alloys, oxidation magnesium- lithium-rich alloy samples were shown occur near 500 °C, temperature range dangerously close operating solution furnaces manufacturing processes treatable sheets used aerospace industry. Commercial AW257, 2198, 2024, 1050 also assessed same tools. The needed be reached these commercial react significantly higher than normal conventional furnace.