Abstract
MANY investigations of tungsten steels have been made, but there has, as yet, been no systematic study of them, and their structural constitution is almost unknown. The steels themselves have long been important in an industrial sense, in that tungsten is an essential constituent of many magnet and rapid-cutting tool steels. The remarkable fact that the initial temperature from which they are cooled and the rate of cooling determine the position of the critical points has long been familiar to metallurgists, but hitherto there has been no completely satisfactory explanation of it. The publication of a systematic study of the magnetic qualities and metallography, not only of the tungsten steels, but also of carbonless iron-tungsten alloys, by Honda and Murakami in the recently issued science report (vol. vi. No. 5) of the Tohoku University is therefore to be welcomed.
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C., H. The Metallography of Tungsten Steels . Nature 102, 74–75 (1918). https://doi.org/10.1038/102074b0
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DOI: https://doi.org/10.1038/102074b0