The Al-Hf (aluminum-hafnium) system

Phase stability and anisotropic elastic properties of the Hf–Al intermetallics: A DFT calculation

“…For the considered Hf-Al intermetallics, six intermetallics are stable at low temperature in the Hf-Al phase diagram, namely D0 23 -HfAl 3 , HfAl 2 , Hf 2 Al 3 , HfAl, Hf 4 Al 3 and Hf 3 Al 2 [34]. Our calculations of formation enthalpies are illustrated a convex hull in Fig.…”

On the Solubility of Group IV Elements (Ti, Zr, Hf) in Liquid Aluminum Below 800°C

“…According to the accepted phase diagrams, among Al-Ti, Al-Zr, and Al-Hf systems are characterized by the presence of a peritectic transition between the a-Al solid solution and the Al 3 M aluminide. [11][12][13] For liquid Al enriched in transition metals, the first crystallization phase to form is a pro-peritectic Al 3 M ordered phase. During conventional casting, this primary phase nucleates and grows into coarse grains (typically 100 lm), leading to a significant decrease in the liquid of the transition metal.…”

Assessments of molar volume of the binary C14 Laves phase

“…According to the Al-Hf phase diagram measured by Murray et al [22], the C14-Al 2 Hf was at the stoichiometric composition, i.e. 66.7 at% Al.…”