Effect of the zirconium addition on the microstructure of Al + 8 WT% Mg alloy

Phase evolution of Mg–Al–Zr nanophase alloys prepared by mechanical alloying

“…Zirconium can be added to Al-Mg alloys to improve fatigue corrosion cracking and natural aging resistance [4,5], as well as to promote superplastic behavior [6]. Additionally, MA can promote the formation of intermetallics in the Zr-Al system [7,8] and metastable phases in both Mg-Zr [9,10] and Mg-Al [11][12][13] systems.…”

“…Additionally, MA can promote the formation of intermetallics in the Zr-Al system [7,8] and metastable phases in both Mg-Zr [9,10] and Mg-Al [11][12][13] systems. Most of the work published in the Al-Mg-Zr system has focused on the liquid-processing route [4,[14][15][16][17], and little or no information is available on the processing of nanophase Al-Mg-Zr alloys by MA. Therefore, the aim of this investigation is to study the phase evolution of as-milled and annealed Al-Mg powders before and after the additions of 5 at% Zr.…”

Electrochemical Degradability of Al-20% Mg and Al-22% Si Alloys in an Acidic Environment in Relation with their Microstructure

“…However, the β-Al3Mg2 brittle phase presence in the matrix reduces their ductility and, consequently, their mechanical properties [23]. In order to improve these properties, some studies have been devoted to a refined Al-Mg alloy structure, by addition of grain refiners, such as boron, titanium and zirconium [23][24] that provide a more homogeneous precipitates distribution. The β-Al3Mg2 phase precipitation strongly influences the Al-Mg alloys corrosion, in particular the 5xxx alloys which undergo an intergranular corrosion [25][26].…”

The Effect of Al–8%B Master Alloy and Heat Treatment Conditions on the Microstructure and Mechanical Properties of an A518 Aluminium Alloy

“…The effect of microstructural parameters such as the nature of precipitation on the matrix and size and distribution of grain boundary precipitates or grain size, play an important role in the mechanical properties of Aluminium alloys [5]. The grain size of the Al-Mg alloys tends to be rather large and grain refinement has been found to play a vital role in cast and wrought alloys.…”

“…The grain size of the Al-Mg alloys tends to be rather large and grain refinement has been found to play a vital role in cast and wrought alloys. Grain refinement provides improved mechanical properties; it also improves the uniformity of structure throughout the casting, including a finer distribution of second phase and micro porosity [5][6][7]. June 3-4, 2015 pp.…”