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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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气氛中硫和氯导致fe--15cr--10al合金表面氧化铝膜退化
Keywords: 材料失效与保护,fe--cr--al合金,氧化,氯,硫,退化
Abstract:
？研究了fe--15cr--10al合金在700℃还原性h2--co2和h2--hcl--h2s--hcl混合气氛中的腐蚀行为.结果表明,添加到h2--co2气氛中的微量hcl和h2s导致合金表面氧化铝膜退化,在合金表面生成了铁铬铝混合氧化物层.这种退化与腐蚀过程中生成的硫化物和氯化物密切相关.计算混合气氛中平衡时的氯势、氧势和硫势预测了合金与气氛可能发生的反应,并解释了腐蚀机制.
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