ENTHALPY AND HEAT-CAPACITY OF TITANIUM-BASED ALLOYS

Light metal alloys, as aluminium- and titanium based alloys, are of gr eat interest to aerospace industry but thermodynamic information, main ly heat capacity, is often missing. Then we measured on heating the he at content of seven industrial titanium alloys from room temperature t o 600-degrees-C with the help of a high-temperature Calvet calorimeter (drop method). Their heat capacities were deduced by derivation of th e enthalpy with respect to temperature. The departures from Kopp-Neuma n law were calculated.