High temperature titanium braze foil

Details High temperature titanium braze foil High temperature titanium braze foil

1975-02-13

1977-05-31

Rutledge, L. Dewayne

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428660, 228195, B32B 1500

Patent

active

040266770

ABSTRACT:
The diffusion brazing of members comprised of materials which are characterized by embrittlement as a result of exposure to excessive temperatures is accomplished with the aid of preforms consisting of a titanium-zirconium alloy foil coated with a plurality of eutectic depressant alloying agents. The depressant agents, in a preferred embodiment, are applied as layers and consist of beryllium and nickel. The preforms are sandwiched between surfaces to be joined and the resulting assemblies are heated in a non-reactive environment with light pressure loading whereby a liquid phase will result and diffusion of metal from the preform into the base metals will occur.

REFERENCES:
patent: 2906008 (1959-09-01), Boegehold et al.
patent: 3038249 (1962-06-01), Gilliland et al.
patent: 3148038 (1964-09-01), Wolfe
patent: 3451792 (1969-06-01), Redden

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