Patent ID: 6679680
Filing Date: 2004-01-20
Classification: B23K,C23C,F01D,Y02T

Abstract:
A method for preparing a built-up gas turbine component comprising the steps ofproviding a gas turbine component having a component surface and made of a component base metal having a component base metal composition; supplying a buildup tape having a net metallic buildup composition different from the component base metal composition, the buildup tape including a first metallic constituent having a first melting point, a second metallic constituent having a second melting point, the first metallic constituent and second metallic constituent together comprising the net metallic buildup composition, and a nonmetallic binder binding together the first metallic constituent and the second metallic constituent; applying the buildup tape to the component surface; and heating the buildup tape and the component surface to a brazing temperature greater than the first melting point and less than the second melting point, so that the first metallic constituent melts and fuses the first metallic constituent and the second metallic constituent to the component surface as a buildup deposit on the built-up gas turbine component.