Insert material for solid phase diffusion welding for nickel bas

Details Insert material for solid phase diffusion welding for nickel bas Insert material for solid phase diffusion welding for nickel bas

1988-09-20

1990-11-27

Dean, R.

Metal treatment

Compositions

Heat treating

148 115Q, 148127, 22826313, C22F 110

Patent

active

049733664

ABSTRACT:
In solid phase diffusion welding of a nickel base superalloy having nickel as a main component, an insert material for solid phase diffusion welding and method thereof are disclosed which can improve the welding strength, the insert material consists of an alloy containing 5-25% by atomic % of total atomic amount of at least one selected from aluminum, titanium, tantalum and niobium, [100-(total atomic % of aluminum, titanium, tantalum and niobium).times.4] % or less by atomic % of total atomic amount of at least one selected from chromium, cobalt, tungsten, molybdenum and zirconium and the balance being substantially nickel.
After this insert material is previously subjected to heat treatment at between 700.degree. C. and melting point or plastic working, it is interposed between the welded surfaces and heated up to a temperature of the melting point or less of base metal in vacuum or inactive gas solid phase diffusion welding.

REFERENCES:
patent: 3632319 (1972-01-01), Hoppin
patent: 3692501 (1972-09-01), Hoppin
patent: 3700427 (1972-10-01), Hoppin
C. T. Sims et al., The Superalloys, J. Wiley & Sons, 1972, pp. 259-281, 596-599.
K. Yasuda et al., Mechanical Properties and Microstructure of Melt-Spun Superalloy Ribbons, 1984.
K. Yasuda et al., Application of Melt-Spun Superalloy Ribbons to Solid Phase Diffusion Welding for Ni-Base Superalloy, 1988.

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