Back (Al-Base)

EN AW-3003 | Al Mn1Cu

Numeric designationEN AW-3003
Chemical designationAl Mn1Cu
EtchingBarker

The micrographs show etching according to Barker. Unfortunately, etching according to Kroll did not work here.
The precipitates are of the type Al4Mn or Al6Mn.

Barker:

  • 20 V d-c
  • 120 s
  • V2A-Kathode