Method for Determining the Solubility of Hydrogen in Molten Aluminum-Lithium Alloys

摘要

A constant volume technique, involving the measurement of differential pressure generated between a control volume subjected to an inert gas and an ''active'' volume subjected to hydrogen, has been used to determine the solubility of hydrogen in molten 2090 aluminum lithium alloys. The solubility of hydrogen in 2090 aluminum lithium alloys obeys Sievert's law and lies between 1-6 ppM for pressures varying from 250-950 mm Hg in the temperature range 650-750/degree/C. The heat of dissolution of hydrogen is of the order of 135 kJ mol sup -1 in this alloy. (ERA citation 13:036787)