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

Mechanical alloying and milling of Al–Mg alloys

“…Mechanical alloying has been successfully used for the preparation of supersaturated solid solutions in the Al-Mg system [15][16][17][18][19][20][21]. The equilibrium solid solubility of Mg in Al at room temperature is only about 1 at.% [22].…”

“…The equilibrium solid solubility of Mg in Al at room temperature is only about 1 at.% [22]. For MA Al-Mg alloys, depending on the initial solute content in the elemental powder mixture, the milling parameters and the presence of control processing agents [15][16][17][18][19][20][21], the solid solubility of Mg in Al can be extended far beyond the equilibrium concentrations up to 45 at.% Mg [15]. The MA Al-Mg powders are metastable nanocrystalline fcc solid solutions and transform into the stable phases (␤-Al 3 Mg 2 and/or ␥-Al 12 Mg 17 ) during subsequent heating [15][16][17][18][19].…”

Thermodynamic modeling of the Ce–Zn and Pr–Zn systems

“…In particular, the Mg base alloys of the Mg-Zn series have great advantages for the development of low cost Mg base alloys due to high strength of considerable hardening response and good grain refinement by zirconium [1,2]. Rare earth elements are often added to Mg base alloys to improve their high temperature strength and creep resistance by precipitation hardness [3][4][5].…”

Hardness and Wear Properties of Al–4.5%Cu/Al₃Mg₂ Nanocomposite Prepared by Mechanical Alloying

“…4) The pre-alloyed AlMg powders are first metastable fcc structure solid solutions and then during melting and subsequent heating, transform into the stable phases (¢-Al 3 Mg 2 and/or £-Al 12 Mg 17 ). 7,8) In this work, both mechanical alloying (MA) and mechanical milling (MM) techniques have been used to produce supersaturated Al(Cu) solid solutions with Cu content of 4.5 mass% in order to achieve the heat treatable composite matrix and mechanical milling (MM) was applied to reduce particle size of pre-alloyed intermetallic compound of Al 3 Mg 2 down to nanometer scale. The effect of the different weight percent of nano-size reinforcing agent on the above mentioned properties of press-sintered composite samples are investigated too.…”