Precipitation priority in 5083 Al-alloys containing small amounts of Cu or Zn

Abstract

This study investigated the precipitation priority in Al–Mg alloys modified by the addition of 0.8 wt-% Cu or Zn, revealing that both these alloys exhibit increased hardness and decreased corrosion resistance. Scanning electron microscopy, transmission electron microscopy, and high-angle annular dark field imaging show that the precipitation priority changed the main second-phase particles of Cu- and Zn-containing alloys. Additionally, thermodynamic data of these phases were calculated using a semi-empirical model, showing good agreement with the experimental results. This paper is part of a thematic issue on Light Alloys.

Light alloys

“…The inclusion of recent examples of simulations applied to Al and Mg alloys adds greatly to the value of the review. The original research articles that follow are then loosely grouped according to subject, commencing with studies on underpinning metallurgy [2][3][4][5], cast alloys [6][7][8], the properties and performance of extruded products [9][10][11][12], before moving to parallel tubular angular pressing [13] and selective laser melting [14]. The remaining articles deal with materials that may be considered to be composites based on an aluminium alloy, and these include an important contribution on foams [15], as well as contributions on synthesis [16] and the response of a composite to liquid-phase pulse impact treatment [17].…”