| 摘要 |
A layer of a wetting metal characterised by having a softening point lower than the temperature at which scaling of the base metal begins is applied preferably by brazing to the base metal of the article and softened by heating to a temperature in a range between the softening point and the melting point of the wetting metal but below the temperature at which scaling of the base metal begins, and a corrosion- resistant alloy is then bonded at a temperature in this temperature range to the softened wetting metal, preferably by arc spraying. Finally, a layer of hard chromium is optionally electrolytically deposited on the surface of the corrosion-resistant alloy. The corrosion resistance of the article is thereby improved. |
