Nickel-base superalloy compositions

Details Nickel-base superalloy compositions Nickel-base superalloy compositions

1992-06-17

1995-03-07

Dean, Richard O.

Alloys or metallic compositions

Nickel base

Chromium containing

2282623, 428680, C22C 1905

Patent

active

053955846

ABSTRACT:
Nickel-base superalloy composition for the repair, coating or rebuilding of the surface of a superalloy substrate, such as a single crystal nickel-base superalloy, to impart thereto surface areas having improved high temperature properties such as hot corrosion resistance. The present compositions are applied by low heat-input welding processes, such as laser welding or plasma arc welding, and are formulated to provide hot corrosion resistance properties and yet to have good weldability properties. The composition contains, by weight percentages, 2-12.5 Cr, 6-17 Cr, 0.5-7 Mo, 0.5-4 Ta, 2.5-9.5 Al, 1-4 Re, 1.5-8.5 W, 0.01-2.5 Nb, 0.5-6 Ti, 0.01-0.7 Yt, 0.02-3.5 Hf, and balance Ni.

REFERENCES:
patent: 4388124 (1983-06-01), Henry
patent: 5068084 (1991-11-01), Cetel et al.
patent: 5077141 (1991-12-01), Naik et al.
patent: 5154884 (1992-01-01), Wukusick et al.

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