Fabrication of a high strength Mg–11Gd–4.5Y–1Nd–1.5Zn–0.5Zr (wt%) alloy by thermomechanical treatments

Evaluating the textural and mechanical properties of an Mg-Dy alloy processed by high-pressure torsion

“…It is now well-established that conventional thermo-mechanical processing, such as hot extrusion and hot rolling, leads to substantial grain refinement, improves the mechanical properties and insures a good thermal stability of the Mg-RE based alloys [12,13].…”

Microstructure evolution of Mg–11Gd–4.5Y–1Nd–1.5Zn–0.5Zr (wt%) alloy during deformation and its effect on strengthening

“…There is much interest in rare earth (RE) containing Mg alloys due to their outstanding mechanical properties and their potential applications in the automotive and aerospace industries [1]. Compared with the as-cast Mg-RE alloys, the wrought Mg-RE alloys normally have better mechanical properties due to the fine microstructures, uniformly distributed precipitates and weak texture [2][3][4][5][6][7][8]. To produce high strength wrought Mg alloys, many investigations on the Mg-Gd based alloys with addition of elements such as Y, Nd, Dy, Zn, Ag etc.…”

“…Recently, a Mg-10Gd-5.7Y-1.6Zn-0.7Zr (wt%) alloy with a yield strength of 473 MPa and an elongation to failure of 8% was successfully produced by hot extrusion followed by aging [3]. In addition, a Mg-11Gd-4.5Y-1Nd-1.5Zn-0.5Zr (wt%) alloy with a yield strength of 502 MPa and an elongation of 2.6% was also produced by hot extrusion, cold rolling and aging [5,6]. These alloys exhibit a tension-compression asymmetry with a ratio of compressive to tensile yield strength larger than a unity, whereas this value is between 0.3 and 0.7 for most commercial wrought Mg alloys [9].…”

Enhancing the Strength and Ductility in Mg–Zn–Ce Alloy through Achieving High Density Precipitates and Texture Weakening

“…During the initial stages of ageing, the hardness increased slightly. [25][26][27][28][29] It could be seen that the GW series alloys exhibited high strength but a very limited ductility. Figure 2 shows the typical engineering stress-strain curves of the as-extruded and peak-aged alloys.…”

“…Comparison of mechanical properties between the alloys in the present study and other alloys reported in the literatures [24][25][26][27][28][29]. …”