Abstract
THE president's address, with which the present volume opens, is devoted to the subject of the ‘thermal equilibrium diagram,’ in order to show that such diagrams, which may appear to be of merely academic interest, have great practical value for the foundryman and the worker in metals. Several alloy systems are described in illustration, and a further example is afforded by a paper describing the changes in standard silver which are brought about by heat treatment. It is of interest that this alloy may be made to develop structures which under the microscope closely resemble those of hardened steel by quenching under different conditions. Several systems of alloys containing that very reactive metal, zirconium, have been prepared with the aid of a high-frequency induction furnace working in a high vacuum, but owing to the very limited range of solid solubility of the intermetallic compounds which are formed, the alloys do not promise to be of technical value.
The Journal of the Institute of Metals.
Vol. 39. Edited by G. Shaw Scott. Pp. xii + 814 + 63 plates. (London: Institute of Metals, 1928.) 31s. 6d. net.
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The Journal of the Institute of Metals . Nature 122, 920 (1928). https://doi.org/10.1038/122920a0
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DOI: https://doi.org/10.1038/122920a0