Measurement of hydrogen solubility in liquid iron alloys employing a constant volume technique |
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| Authors: | William M Boorstein Robert D Pehlke |
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| Affiliation: | (1) Department of Metallurgical Engineering, Ohio State University, Columbus, Ohio;(2) Department of Materials & Metallurgical Engineering, University of Michigan, 48104 Ann Arbor, Mich |
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| 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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