Peer reviewed by the Japanese Committee for Alloy Phase Diagrams In September 2000, this editor published the Desk Handbook: Phase Diagrams for Binary Alloys from ASM International.
This handbook was published with the intention of providing as many pieces of information as possible on binary alloys in one volume, which is easily manageable and affordable for reference works by every user in materials science and related fields.
In order to achieve this goal, only one best diagram was selected for each binary system and three diagrams were shown on one page. The size of the diagram was 60% of that shown in the preceding three-volume compendium Binary Alloy Phase Diagrams published in 1990 by ASM with editors T.B. Massalski, H. Okamoto, P.R. Subramanian, and L. Kacprzak.
Although the smaller format adopted in the Desk Handbook served well for providing the overall information on phase relationships in each binary system, data on very limited solubility of one element in another element or binary compound, is often ‘lost’ in the thickness of the frame line of the diagram or shown in such a narrow composition range that it is difficult to get meaningful information on the phase diagram with enough accuracy.
It was estimated that there were several hundreds of such diagrams studied with special attention paid to limited solubility. In order not to lose this detailed information, this handbook compiles all the information available on limited solubility in every binary system. For those that work closely with phase diagrams, this handbook is a necessary supplement to the Desk Handbook: Phase Diagrams for Binary Alloys.
In most cases, the range of a dilute solution covered in this handbook is simply the range in which the diagram is difficult or impossible to read from the full-scale version in the Desk Handbook: Phase Diagrams for Binary Alloys. It is arbitrarily assumed here that a phase diagram with a full-scale range up to approximately 10 at.% is difficult to read when it is shown compressed in a 0100 at.% complete diagram.
Therefore, all diagrams assembled in this handbook were adopted from partial diagrams with composition ranges less than 10 at.%. These were selected from published diagrams, which were determined experimentally or by calculation with special interest in this limited solution range. No diagrams in this handbook are simple enlargements of a full-size (0100 at.%) diagram.
About the Editor: Dr. Hiroaki Okamoto is co-editor of ASM’s primary binary phase diagrams reference work, the 3-volume set Binary Alloys Phase Diagrams, Second Edition [Massalski2], and the electronic edition of this work, Binary Alloy Phase Diagrams, Second Edition, Plus Updates, on CD-ROM.
He has personally evaluated and published phase diagrams and related data for more systems than any other living professional, completing 505 evaluations. He is editor of Desk Handbook: Phase Diagrams for Binary Alloys, published by ASM International in 2000.
Dr. Okamoto has also published classic articles on common mistakes made in drawing phase diagrams, including “Thermodynamically Improbable Phase Diagrams,” “Reevaluation of Thermodynamic Models for Phase Diagram Evaluation,” and “Guidelines for Binary Phase Diagram Assessment” (Journal of Phase Equilibria, 12(2), 12(6), and 14(3), respectively).
He has been Supplemental Literature Review Editor for Journal of Phase Equilibria since 1991. Presently professor, Department of Information Management, Asahi University, Hozumi-cho, Gifu, Japan, Dr. Okamoto was senior technical editor, Alloy Phase Diagram Program, ASM International, from 1987 through 1993.
He obtained his master’s degree in applied physics from Nagoya University in 1965, and his doctorate in metallurgy from the University of Illinois in 1971. Earlier in his career, he worked on the evaluation of binary gold systems at Carnegie-Mellon University in Pittsburgh and on the evaluation of beryllium alloy systems at the Lawrence Berkeley Laboratory in California.
He was editor of Phase Diagrams of Binary Iron Alloys (ASM International, 1993), and co-editor of Phase Diagrams of Binary Gold Alloys, Phase Diagrams of Binary Beryllium Alloys, and Phase Diagrams of Binary Indium Alloys and Their Engineering Applications (ASM International, 1987, 1987, and 1991, respectively). He was also a co-editor of the 10-volume Handbook of Ternary Alloy Phase Diagrams (ASM International, 1995).
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