Abstract
THE large size of this volume, as compared with that of previous issues is an indication of the growing interest in the metallurgy of the non-ferrous metals. Sir George Goodwin's presidential address demonstrates the importance of those metals to the Navy, an importance which would in itself justify the existence of the institute. The fifth report to the Corrosion Committee carries this valuable investigation a stage further, and succeeds in throwing light on the problem of the corrosion of condenser tubes, the new facts concerning the skin on the surface of a drawn tube being of distinct value to the discussion of the possible methods of lessening corrosion. A similar subject is dealt with in a paper by Dr. Seligman and Mr. Williams on the action of hard waters on aluminium. Mr. Vivian's paper on the alloys of tin and phosphorus is an excellent piece of thermal analysis, dealing with a system of which one component is highly volatile, thus introducing great experimental difficulties. The alloys of zinc with less than 15 per cent, of aluminium and copper respectively are described in a paper from the National Physical Laboratory, and Dr. Haughton, of that laboratory, also contributes a preliminary account of the investigation of alloys by determination of the thermo-electromotive force. Some remarkable results obtained a few years ago by Mr. Alkins in the drawing of copper wire, which indicated a discontinuous change of properties at a certain stage of reduction, are now confirmed by very careful further experiments. The results contained in another paper in the same volume, on the properties of rolled copper, make it clear that rolling affects the metal much more irregularly than drawing, so that definite conclusions are not easily reached. Other subjects dealt with are the casting of brass of high tensile strength, and the production of idiomorphic crystals of copper.
The Journal of the Institute of Metals.
G. Shaw
Scott
Vol. xxiii., No. 1, 1920. Edited by. Pp. xii + 644 + xxx plates. (London: The Institute of Metals, 1920.) Price 31s. 6d. net.
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D., C. The Journal of the Institute of Metals . Nature 106, 308 (1920). https://doi.org/10.1038/106308a0
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DOI: https://doi.org/10.1038/106308a0
