Heat transfer coefficients of Mg70Li30 ultralight alloy

The transfer properties of a congruently melting Mg-Li alloy with a lithium content of 30 at. %, considered as a promising ultralight structural material for the aerospace industry, have been studied experimentally. New experimental data on thermal diffusivity ( a ) and thermal conductivity ( λ ) have been obtained in the temperature range of 293–777 K with estimated errors of 2–4 % and 3–5 %, respectively. The results have been compared with the known literature data on thermal conductivity of Mg-Li system alloys. A table of recommended temperature dependences for a and λ of the studied composition has been developed.