Francis Peter Ford

US Patent:

20040258192, Dec 23, 2004

Filed:

Jun 16, 2003

Appl. No.:

10/461903

Inventors:

Thomas Angeliu - Clifton Park NY, US
Peter Andresen - Schenectady NY, US
Young-Jin Kim - Clifton Park NY, US
Francis Ford - Rexford NY, US

Assignee:

General Electric Company

International Classification:

G21C009/00

US Classification:

376/305000

Abstract:

A process for mitigating stress corrosion cracking of steam turbine components in a steam environment, includes coating the metal components of the steam turbine with a noble metal. The noble metal is preferably a platinum group metal selected from the group consisting of platinum, palladium, osmium, rhodium, ruthenium, iridium, and combinations comprising at least one of the foregoing platinum group metals. In another embodiment, the process comprises coating the metal components with a platinum group metal and introducing a reductant into the steam to mitigate the stress corrosion cracking. Also disclosed herein is a steam turbine comprising a metal component having a surface coated with a platinum group metal.