Ni—Ti—CR near ternary eutectic alloy for gas turbine component repair

摘要

A ternary near eutectic alloy of Ni, Ti, Cr is described having a relatively low melting temperature of approximately 1230 deg. C. or less, suitable for fusing cracks in turbine blades and vanes without substantial risk of cracking during the repair process. Such an alloy is suitable for low temperature joining or repair of turbine blades since it contains the same components as typical turbine blades and vanes without foreign elements to lower the melting point of the repaired material or adversely affect the mechanical properties of the repaired component. Exclusion of boron eliminates the formation of brittle boron compounds, detrimental to the properties of the repair or seam.

主权项

1. A ternary near eutectic alloy consisting of 60 weight percent nickel, 20 weight percent titanium and 20 weight percent chromium and having a melting temperature less than 1230 deg. C. and therefore suitable for joining or repair of superalloy gas turbine components.