초록 ▼

A method of bonding cast superalloys is disclosed. The method includes the steps of casting separate superalloy component parts, machining the mating surfaces of the separate parts in a controlled manner to avoid recrystallization of the material and to ensure a tight fit between the parts, bonding

A method of bonding cast superalloys is disclosed. The method includes the steps of casting separate superalloy component parts, machining the mating surfaces of the separate parts in a controlled manner to avoid recrystallization of the material and to ensure a tight fit between the parts, bonding the parts together, and thermally treating the bonded component. In a preferred embodiment, the component is a turbine blade for a land-based gas turbine.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method of bonding cast superalloys comprising:casting separate superalloy segments;preparing interfacing surfaces of adjacent segments;bonding the segments together within a bond zone with a bonding medium which includes a melting point depressant; andprecipitation he

[ What is claimed is:] [1.]1. A method of bonding cast superalloys comprising:casting separate superalloy segments;preparing interfacing surfaces of adjacent segments;bonding the segments together within a bond zone with a bonding medium which includes a melting point depressant; andprecipitation heat treating the bonded segments by heating the bonded segments at a series of temperatures, such that the bond zone between the precipitation heat treated segments remains substantially unrecrystallized.