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To the formation of a protective layer by means of oxidation preventing corrosion on steel, in particular, the hardening of martensitic steels.
To the formation of a protective layer by means of oxidation preventing corrosion on steel, in particular, the hardening of martensitic steels.
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机译:通过氧化形成保护层,以防止在钢上的腐蚀,特别是马氏体钢的硬化。
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摘要
A method is provided for forming an anti-corrosive oxide layer on steel. The steel surface is subjected to superheated steam for a period of one to several hours. Before subjecting the steel to the superheated steam, the steel surface is initially subjected to a gaseous formic acid atmosphere at a raised temperature of up to 480 DEG C. The treatment with superheated steam takes place during a further heating period in which a temperature between 450 DEG C. and 520 DEG C. is maintained under steam flow-through conditions in which the steam flow has a Reynolds number greater than 900.
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