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Fuss's etchant - Wrought aluminium alloy - Chemical etching

Material Name: AlCu4Mg1 wrought aluminium alloy
Recipe No.: 11460
Primary Chemical Element in Material: Al
Sample Type: Bulk
Uses: General microstructure
Etchant Name: Fuss's etchant
Type (Macro/Micro): Micro
Etching Method: Chemical
Etchant (Electrolyte) Composition: 7.5 ml HF, 8 ml HNO3, 25 ml HCl and 1000 ml H2O.
Procedure (Condition): No data
Note: Crystal structure of Fe4Al3.
Reference: Ulrich Burkhardt, et al., Metallographic Characterisation of Twinning and Other Microstructure Defects of Fe4Al13, RESEARCH REPORTS, 2012, pp. 135-136, Website https://www2.cpfs.mpg.de.