SETT ATT BILDA ETT SKYDDANDE DIFFUSIONSSKIKT PA NICKEL-, KOBOLT-, OCH JERNBASERADE LEGERINGAR

摘要

Methods are provided for forming protective diffusion layers on nickel, cobalt and iron base alloy parts comprising the steps of depositing a coating of a platinum group metal on the surface of the part to be protected and forming a diffusion layer of platinum and aluminum on said surfaces by gas phase aluminizing said surfaces out of contact with a source of gaseous aluminizing species at elevated temperature.