Methods of Deep etching and particle extracting for controlling of aluminium alloys

Abstract

The 3D-analysis of the microstructural components in aluminum alloys is becoming increasingly important. Knowledge of the morphology of the individual phases, their precise chemical composition, mechanical properties and their distribution in the compact sample allows the design of new aluminum alloys. The method of Dynamic deep etching and particle extraction using methanol-iodine solution is presented. The result is a deep etched compact sample revealing the distribution of the different phases in Al-matrix and a powder consisting of minor phases, which allows accurate determinations of their chemical compositions, crystal structures and morphology, using SEM, TEM and XRD