The Ru-Zr phase diagram in [Massaalski2] was primarily based on [1988Ere] and the assessment of this system was published later by [1993Oka]. Thermodynamic modeling of this system was attempted as described below, all based on the data of [1988Ere]. [1997Mah] first calculated the Ru-Zr phase diagram. Unusual inflection points exist along the liquidus. Probably, thermodynamic parameters were inappropriate. Recently, [2007Idb] and [2008Ran] attempted thermodynamic assessment of the Ru-Zr system independently. Their calculated phase diagrams are very similar. Figure 1 shows the more recent work of [2008Ran]. This phase diagram is believed to be a good representation of the experimental data of [1988Ere].

Fig. 1
figure 1

Ru-Zr phase diagram

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