Comparative studies on the microstructure evolution and fracture behavior between hot-rolled and as-cast Mg96ZnY3 alloys

Microstructure and mechanical properties of extruded Mg 96 Zn 1 Y 3 alloy

“…The flow stress behavior at 350°C is mainly controlled by non-basal slip accompanying with dynamic recrystallization and growth of grain. [11][12][13][14][15][16][17][18][19][20]. …”

“…Recently, Mg-Y-Zn alloys containing long-period stacking ordered (LPSO) structures have been investigated for exploring high-strength magnesium-based alloys [8][9][10][11][12][13][14][15]. Extruded Mg 96 Zn 2 Y 2 alloy, containing both Mg 12 YZn LPSO phase and Mg 3 Zn 3 Y 2 phase, exhibits high tensile yield strength of 390 MPa but limited elongation of 5% at room temperature [2].…”

“…The electron beam is parallel to[11][12][13][14][15][16][17][18][19][20].21071140, 91122030, and 21210001), the '863'-National High Technology Research and Development Program of China (Grant No. 2011AA03A407) and the National Natural Science Foundation for Creative Research Group (Grant No.…”

Influence of rolling temperature on the microstructure and mechanical properties of Mg–Gd–Y–Zn–Zr alloy sheets

“…It is reported that Mg-Zn-Gd alloy was hot rolled at 450 1C with rolling reduction of 15-20% per pass, and because such low strain rolling cannot refine the microstructure sufficiently, the tensile yield strength and ultimate tensile strength of the sheets were only 189 MPa and 233 MPa, respectively [13]. In addition to the rolling reduction, rolling temperature plays a key role in affecting the microstructure and mechanical properties of the Mg alloy sheets [16,17]. Li et al [17] analyzed the microstructure evolution of the Mg-Zn-Y alloy final rolled at 350 1C and 400 1C with reduction of 15% and found that parallel dislocations and subgrain boundary were formed in the alloy final rolled at 400 1C, while dense dislocations restricted within the twins was observed in the alloy rolled at 350 1C.…”

High-strength Mg93.96Zn2Y4Sr0.04 alloy with long-period stacking ordered structure

“…With in-depth investigations of the long-period stacking ordered structure, the processing method was generalized to Cu-mold casting with an induction melting method and conventional casting as well [4][5][6]. Meanwhile, some researches focused on the effect of plastic processing on the magnesium alloys strengthened with LPSO structure using hot extrusion, hot-rolling processing and severe plastic deformation (SPD) techniques [7][8][9][10][11]. Equal channel angular pressing (ECAP), as one of the SPD techniques, has been widely used to fabricate bulk UFG materials in the AZ and ZK series magnesium alloys [12][13][14][15].…”