アーク溶解における純鉄の酸素吸収について : 鋼溶接金属の酸素吸収・脱酸機構についての研究(第1報)

概要

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The oxygen absorption behavior of arc melted pure iron has been investigated in a controlled atmosphere of Ar-O_2 or Ar to elucidate the oxygen absorption mechanism of steel weld metal during arc welding process. As the arc current increases, the temperature of arc melted pure iron increases. The oxygen content of arc melted pure iron increased with an increasing arc melting time, and then had a constant value. The constant value of oxygen in arc melted pure iron agreed well with the oxygen solubility calculated from each molten iron temperature. It is considered that the results apply to weld metals during arc welding process. Therefore, above the 0.01 MPa of oxygen partial pressure, it is probably that the pure iron weld metals absorb oxygen corresponding to the oxygen solubility calculated from the average weld pool temperature.
社団法人溶接学会の論文
1991-08-05