Abstract
The solubility of hydrogen in liquid pure iron and in several liquid binary iron alloys at steelmaking temperatures has been determined by measuring changes in hydrogen pressure in a constant volume system. The solubility of hydrogen corrected to one atmosphere pressure was found to be 27.70 ± 1.28 cc (STP)/100 grams in liquid pure iron at 1600°C with a temperature coefficient of solubility of 2.9 x 10-2 cc (STP)/°C. This solubility decreases with increasing concentrations of aluminum, boron, or silicon; slightly increases with increasing concentrations of chromium, nickel, and niobium; and is almost independent of the concentrations of copper or sulfur. The data are compared with those of previous investigators who employed the more conventional Sieverts’ or sampling techniques.
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Boorstein, W.M., Pehlke, R.D. Measurement of hydrogen solubility in liquid iron alloys employing a constant volume technique. Metall Trans 5, 399–405 (1974). https://doi.org/10.1007/BF02644107
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DOI: https://doi.org/10.1007/BF02644107