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Archives of Heat Transfer
1988, Dubrovnik, Yugoslavia

DOI: 10.1615/ICHMT.1988.20thAHT


ISBN Print: 978-0-89116-877-5

ISSN: 0899-5311

HEAT AND MASS TRANSFER IN METALLURGICAL SYSTEMS. International Seminar 1979

pages 293-294
DOI: 10.1615/ICHMT.1988.20thAHT.230
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RÉSUMÉ

The materials men work with have characterized their societies since the beginning of pre-history. Historians indeed speak of the Stone, Bronze and Iron Ages; and to call our present times the Plastic Age is to make a significant, if exaggerated, comment. The comment is too extreme because metals are still among the most important of our structural materials, whether embedded within concrete for the construction of buildings and bridges, or thinly covered by paint when used for automobiles and ships, or accessible to the eye in the fuselage of an aircraft or in a domestic cooking utensil.
It is therefore not surprising that, in 1980, the International Centre for Heat and Mass Transfer devoted a symposium to the study of the role of its science in the manufacture, processing and use of metals.
The proceedings of the 1980 Symposium reflect the above - mentioned relationships between the science of heat and mass transfer and technology of metallurgical processing. The blast furnace was the subject of 7 papers, and other iron and steel processes the subject of 6 more; then 5 papers were directly related to processes for winning non-ferrous metals from their ores. Further contributions concerned such more specialized topics as mathematical modeling, crystallization and heat and diffusion treatment. Lastly, and not inappropriately, a session was devoted to that process by which metals, having served their purpose, revert to something like their original chemically-bound state. The process is corrosion, a mass-transfer phenomenon of which the prevention or control could save mankind much expenditure.
To select a paper of especial excellence from so many valuable ones is not easy. My choice falls on that of Professor Julian Szekely, entitled "Transport processes in agitated ladles: problems, solutions and experimental techiques." Its author has made it his special concern to apply systematically to metallurgical processes the techniques and insights which have been regarded with much success; and he can truly be regarded as a significant benefactor to the metallurgical industry, as well as to research workers in heat and mass transfer.

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