| 摘要 |
Disclosed are coated metal articles having protective coatings which are applied to substrate metals by coating the metal surface, e.g. by dipping the substrate metal in a molten alloy of the coating metals, and then exposing the coating at an elevated temperature to an atmosphere containing a reactive gaseous species which forms an oxide, a nitride, a carbide, a boride or a silicide. The coating material is a mixture of the metals M1 and M2, M1 being zirconium and/or titanium, which forms a stable oxide, nitride, carbide, boride or silicide under the prevailing conditions. The metal M2 does not form a stable oxide, nitride, carbide, boride or silicide. M2 serves to bond the oxide, etc. of M1 to the substrate metal. Mixtures of M1 and/or M2 metals may be employed. Eutectic alloys of M1 and M2 which melt substantially lower than the melting point of the substrate metal are preferred.
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