オーステナイトステンレス鋼の高温燃焼雰囲気中における酸化挙動
1979 年 65 巻 7 号 p. 779-787
詳細
1979 年 65 巻 7 号 p. 779-787
The high temperature oxidation of 16-25% Cr austenitic stainless steels including SUS 304 was studied at 1200-1300°C in 16% H2O-12%CO2-0-9% O2-N2 gases which were the main constituent of reheating furnace atmospheres.
Oxidation of intermediate Cr steels including SUS 304, was much greater in O2 poor atmosphere than in O2 rich one. This was explained by the effect of H2O, CO2 and O2 on retardation and acceleration of internal oxidation.
For lower Cr steels accompanying with heavy internal oxidation in either O2 rich or poor atmosphere, and high Cr steels being prevented internal oxidation in either atmosphere, the difference of oxidation rate with O2 contents in atmosphere was insignificant. In both cases, oxidation was rather slightly larger in O2 rich atmosphere than in O2 poor one.
