Co-15Ce合金在S-O双重氧化剂中的腐蚀

CORROSION OF CO-Ce ALLOY IN SULFUR-OXYGEN DUAL - OXYGENANT

研究ＣO－１５Ｃｅ（质量分数，％，下同）合金在Ｓ－Ｏ双重氧化剂作用下的腐蚀特征，结果表明，在６００及７００℃下该合金均形成了复杂的腐蚀产物膜，包括外层单一的Ｃｏ的硫化物、中间层Ｃｏ的硫化物与Ｃｅ的化合物的混合物区及内层Ｃｅ的内腐蚀区。且Ｃｏ－１５Ｃｅ合金在６００及７００℃氧化一硫化混合气氛中的腐蚀速度低于相同温度、相同Ｏ。

The corrosion of Co-Ce alloy in sulfur-oxygen dual-oxygenant has been studied at 600and 700 ℃ . In all cases Co-Ce alloy formed dulplex corrosion scales, presenting an outer layer of purecobalt sulfides, a middle mixture layer containing cobalt sulfides and cerium compounds and a ceruim innercorrosion region. Corrosion of Co-Ce alloy in sulfur-oxygen dual-oxygenant was slower than in singleoxygenant under the same testing conditions.