Etching solution developed for use prior to type-IVc penetrant inspection of Incology(R) 903 weld overlays. Formulated as follows: 80 g ferric chloride hexahydrate, 300 mL reagent-grade hydrochloric acid, 25 mL food- or reagent-grade phosphoric acid, and 100 mL ethylene glycol. Gives more reasonable range of etching time and reduces probability of overetching and resulting damage. Stored indefinitely.
Prepenetrant Etchant For Incology(R) 903 Weld Overlays
NASA Tech Briefs ; 14 , 4
1990-04-01
Miscellaneous
No indication
English
Marine applications for Inconel alloy 625 weld overlays
Tema Archive | 1982
NTRS | 1980
|Milder Etchant For Penetrant Inspection
NTRS | 1990
|Springer Verlag | 2024
|Etchant for HgxCd1-xTe Crystals
NTRS | 1983
|