A third generation Calphad description of pure W

A third generation Calphad description is provided for pure W. In addition, a comprehensive review of the thermodynamic models suggested for the third generation unary systems is given. The thermodynamic properties of the phases (bcc, fcc, hcp and liquid) for pure W are described using these new suggestions. The model parameters are evaluated taking into account the available experimental and DFT information. A good agreement to the selected data is achieved.