Bond-coating alloys for thermal spraying

摘要

An alloy, suitable for flame spraying in powder form onto a metal substrate to provide a bond-coat thereon, which contains, by weight, from 2 to 3% aluminium, from 2 to 25% chromium, from 0 to 8% silicon, from 0 to 4% boron and from 0 to 6% iron, the balance, apart from impurities, being copper and/or nickel. The alloys are useful for repairing and building up metal surfaces by metal coating, for restoration or finishing purposes, and for acting as a bond- coat for the application of a ceramic coating.