Hydrogen-reduction method for the determination of oxygen in steel

Abstract

A modified hy drogen-reduction method yielded accurate values for the t otal oxygen content of several plain ca rbon steels, including steels that contained small amounts of alumina and silica, but yielded low results when larger amounts of alumina were present. The method was not applicable to the det ermination of the oxygen conte nt of open-hearth iron because of inability to separa te surface and body oxygen in this m aterial.

Oxygen in Molten Iron: Deoxidation with Silicon and Aluminum

“…3 There is apparent deviation in the Fruehan data from that of Gokcen at oxygen concentrations below 100 ppm, but the scatter is too great to permit any concrete conclusions to be drawn.…”

Erratum to: Oxygen in Molten Iron: Deoxidation with Silicon and Aluminum

“…lines define a set of conditions that satisfy the equilibrium, K w/o = (0.0284). 3 There is apparent deviation in the Fruehan data from that of Gokcen at oxygen concentrations below 100 ppm, but the scatter is too great to permit any concrete conclusions to be drawn.…”

“…These were collected and analyzed in a cooperative study to compare methods for determining the oxygen contents of steels. 3,4 Note that the writing of all analyses to four decimal places does not imply a degree of accuracy. They are presented in this form so that by ignoring the decimal point the compositions are given in ppm.…”