Assessments of molar volumes of Co-, Ni- and Ti- related bcc and fcc phases

A self-consistent model to describe the temperature dependence of the bulk modulus, thermal expansion and molar volume compatible with 3rd generation CALPHAD databases

“…The composition dependence of the molar volume and bulk modulus can be accounted for in a typical CALPHAD fashion, by a rule of mixtures between end-members, plus an excess contribution described by a Redlich-Kister polynomial that includes interaction parameters. This general approach is for instance presented in [50]. In practice however, there have been a…”

“…Hallstedt [38], and new insights on this matter within the framework of the 3 rd generation of CALPHAD thermodynamic databases were recently provided by He et al [36]. The molar volume of various solid solutions were assessed by Hallstedt [38] and Xiong et al [50] along 20 the room temperature isotherm. Both the molar volume and the isothermal compressibility of several binary solution phases in the Al-Cu-Mg system were modeled by Huang et al [51] using temperature independent interaction parameters.…”