PROCESS OF COATING ALLOY SUBSTRATES

摘要

Process of coating iron base or nickel base alloy substrates resulting in coated products for use in high temperature sodium environments, such as those found in liquid metal fast breeder reactors and their associated systems. The coating itself is applied to the substrate by electro-spark deposition techniques which result in metallurgical bonding between the coating and the substrate. One coating involves electro-spark depositing material from a cemented chromium carbide electrode and an aluminum electrode. Another coating involves electro-spark depositing material from a cemented chromium carbide electrode and a nickel-base hardfacing alloy electrode.