Specific and Latent Heats of Iron and Steel

Abstract

IN previous letters to NATURE (April 19 and September 20) I gave the results of some experiments on the rate of contraction of heated iron and steel wires, partly commercial steels, and partly of steels formed by heating nearly pure iron in graphite for periods lasting from one tp five hours. It was found that even the five hours' heating in graphite did not complete, or even nearly complete, the conversion of iron into steel. A similar and more recent series of trials has now been carried out in which the graphite was replaced by wood-charcoal, from which it appears that the action of the latter is far more rapid than graphite, so much so, indeed, that a wire heated in charcoal for a single minute gives a cooling curve notably different from that of the pure iron.

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MALLOCK, A. Specific and Latent Heats of Iron and Steel. Nature 115, 14 (1925) doi:10.1038/115014a0

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