Fe-Al-C alloys-Alloys with 7% Al and 1-2% C

Material: Fe-Al-C alloys
Type: Micro
Method: Chemical thinning
Etchant (electrolyte): 1 part hydrofluoric acid, 3 parts water, 13 parts hydrogen peroxide.
Procedure: Electro polishing: 100 gms chromic acid, 200 ccs phosphoric acid. Chemical etching: Ferric chloride.
Note: Alloys with 7% Al and 1-2% C.
Source: M.Watanabe, et al., Met.Trans., Vol.2, No.8, August 1971, p.2221.















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