研究了700℃时Co-15Ce合金在H2-CO2、H2-H2S及H2-H2S-CO2三种混合气氛中的腐蚀行为.Co-15Ce合金腐蚀后发生了Ce的内氧化或形成了复杂的腐蚀产物膜,而未出现Ce的选择性氧化或硫化,这主要是合金中存在着两相及Ce在Co中极低的溶解度所致.Co-15Ce合金在本实验条件下的氧化-硫化腐蚀速度低于相同温度、压力下的纯硫化.
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