鐵の滲炭並に鋼の脱炭現象の定量的研究 (1)

概要

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In investigating the cementation of pure iron and the decarburisation of carburised high carbon steels, a diameter, which is capable of varying freely the inner atmosphere, was employed. Thin tubular specimens 8 mm in outer diameter, 0.75 mm in wall thickness and 100 mm in length taken as standard, were heated at certain constant temperatures for a long duration in a tubular heat resisting carburising box, in which solid carburising materials were placed or gas current applied. Since austenite increases remarkablely in volume as the cementation proceeds, and contracts by the decarburisation, the stages of various changes accompanied with these phenomena were precisely traced under various conditions in the carburising box, by measuring the dilatation of the specimens.
社団法人日本鉄鋼協会の論文
1939-10-25