A thermodynamic database for zirconium alloys

A thermodynamic database, Zircobase, was developed for zirconium alloys for use in the nuclear industry. Two examples of the assessments concerning the Sn-Zr and H-Zr systems are given. The complete set for the binary systems, compiled or assessed during the course of this study, is to be found on the web site: www.inpg.fr/ltpcm/base/zircobase. The utility of this database is demonstrated in examples of thermodynamic calculations of the alpha/beta phase transformation temperatures performed on industrial Zr-Nb and Zy4 type alloys. These last results show fairly good predictions, using extrapolations of the actual thermodynamic database to ternary or higher order systems. (C) 1999 Elsevier Science B.V. All rights reserved.