Two layer - protection coating for warmth stressed parts, which by means of a plasma - or heat of spray application is basically

摘要

A protective coating for heat stressed parts, particularly firing chambers of steam boilers, comprises a first, base, layer and a second, upper, layer. The base layer comprises nickel and 10 to 30% by weight of chromium and the upper layer comprises aluminium oxide and up to 20%, more particularly up to 10%, by weight of titanium dioxide.