Phase diagram assessment

As a conclusion to these notes on the assessment and compilation of intermetallic data, we mention a few examples of papers in which criteria to be followed in order to extract from literature data the best version of a phase diagram have been discussed. These are Morral and Gupta (1991) (a figure of merit for predicted phase diagram), Okamoto and Massalski (1991, 1993) (thermodynamically improbable phase diagrams and guidelines for binary phase diagram assessment). See also various comments in several chapters in Cahn (2001). 

Parameter Estimation from Phase Diagram Assessment. The second approach used to determine solid-solution behavior is to estimate solution model parameters from a fit to the measured phase diagram. Many of the solution models used to describe the liquid solution have been used to model the solid mixture. The simple-solution expression and its special cases have been used most extensively. 

Ans] Ansara, I., Ivanchenko, V., Cr - Cu (Chromium - Copper) , MSIT Binary Evaluation Program, in MSIT Workplace, Effenberg, G. (Ed.) MSI, Materials Science International Services GmbH, Stuttgart Document ID 20.19588.1.20, (2002) (Crys. Stracture, Phase Diagram, Assessment, 29)... 

Kro] Kroupa, A., Korcakova, L., Houserova, J., Hald, J., The Improved Model for the Mo-Rich Laves Phase and its Appheation for Modem High-Cr Steels , CALPHAD XXXI, Stockholm, May 5-12, 2002, Sweden, Book of Abstracts, (Phase Diagram, Assessment, Calculation, 0)... 

Bal] Baiun, J., Unucka, P, Inden, G., Kroupa, A., Thermodynamic Assesment of Laves Phase and p Phase in Ta-X-Y Systems , CALPHAD XXXH, La Malbaie, May 25-30, 2003, Quebee, Canada, Book of Abstracts, 112 (Phase Diagram, Assessment, Calculation, 5)... 

Itk] Itkin, V.P., Cr-Fe (Chromium-Iron) in Phase Diagram of Binary Iron Alloys , Okamoto, H. (Ed.), ASM International, Materials Park, OH (1993) (Crys. Structure, Phase Diagram, Assessment,, 33)... 

Uhr] Uhrenius, B., A Compendium of Ternary Iron-Base Phase Diagrams , in Hardenability Concepts with Applications to SteeV , Doane, D.V., Kirkaldy, J.S. (Eds.), Proc. Symp. Held Sheraton-Chicago Hotel, Oct. 24-26, 1977, Metall. Soc. AIME Heat Treat. Com./ Amer. Soc Met. Activ. Phase Trans., 28-81 (1978) (Phase Relations, Phase Diagram, Assessment, Review, 53)... 

Lac] Lacaze, J., Sundman, B., An Assessment of the Fe-C-Si System , Metall Trans. A, 22A, 2211-2223 (1991) (Experimental, Thermodyn., Phase Diagram, Assessment, 53)... 

Strictly speaking, the most reliable method of phase diagram assessment should consist of the following three steps ... 

Mur] Murray, J.L., The Al-Cr (Aluminium-Chromium) System , J. Phase Equilib., 19(4), 368-375 (1998) (Crys. Stracture, Phase Diagram, Assessment, Calculation, Review,, , 43)... 

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