Method for detecting surface oxidation on titanium aluminide met

Details Method for detecting surface oxidation on titanium aluminide met Method for detecting surface oxidation on titanium aluminide met

1990-09-27

1991-08-13

Lacey, David L.

Chemistry: analytical and immunological testing

Process or composition for determination of physical state...

Surface area, porosity, imperfection, or alteration

436 6, 436 73, 436 75, 436 83, 436164, 422 53, G01N 1700, G01N 2100

Patent

active

050396129

ABSTRACT:
The present invention is a method of determining oxidation on a titanium aluminide material. An aqueous saturated solution of oxalic acid is prepared. The saturated solution of oxalic acid is combined with a minor portion of hydrofluoric acid solution. The resultant oxalic acid/hydrofluoric acid solution is mixed. The titanium aluminide material is immersed in the mixed solution for a sufficiently long period to allow exposure of the oxidized surface followed by inspection thereof for a white layer indicating the presence of oxidation on its surface.

REFERENCES:
patent: 4551434 (1985-11-01), Thoma

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