アーク溶解におけるFe-Si合金の酸素吸収・脱酸について
鋼溶接金属の酸素吸収・脱酸機構についての研究(第2報)
1991 年 9 巻 3 号 p. 410-415
詳細
1991 年 9 巻 3 号 p. 410-415
An investigation was made of silicon on the oxygen absorption and deoxidation in Ar-O2 or Ar atmosphere during arc melting process, to elucidate the oxygen absorption mechanism of steel weld metal during arc welding process. In Ar-O2 atmosphere, the amount of oxygen absorbed by Fe-Si alloy far exceeded the oxygen levels calculated from the molten Fe-Si alloys temperatures. After changing the atmosphere Ar-O2 to Ar, the oxygen content of arc melted Fe-Si alloy decreased toward the oxygen levels calculated from the Fe-Si alloys temperatures. The probable interpretation is that excessive amount of oxygen is present in Fe-Si alloy as the oxide due to the incomplete separation of reaction products. It is considered that the results apply to weld metals during arc welding process.
