High strength SiCp/AZ91 composite assisted by dynamic precipitated Mg17Al12 phase

Recent Research on the Deformation Behavior of Particle Reinforced Magnesium Matrix Composite: A Review

“…When the extrusion speed drops to 0.01 mm/s, the YS and UTS could reach to ~ 391 MPa and ~ 440 MPa, respectively, as shown in Fig. 1, which are superior to the existing research levels [67]. The nano-SiCp/AZ91 composites were extruded by Nie et al [68], and the results were similar to those of micron PMMCs.…”

“…The interaction between SiCp and DRX was responsible for the high content of Mg 17 Al 12 . As the decrease in extrusion speed, the tensile strength of PMMCs increased, but the elongation of which was decreased [67]. When the extrusion speed drops to 0.01 mm/s, the YS and UTS could reach to ~ 391 MPa and ~ 440 MPa, respectively, as shown in Fig.…”

“…Sun et al [67] considered that the high content of Mg 17 Al 12 phase was the main reason for the excellent mechanical properties of SiCp/M-Al-Zn composites. To obtained the fine-grained PMMCs with high content of Mg 17 Al 12 phase, they attempted to extrude 5 μm 10 vol% SiCp/AZ91 with lower extrusion speed (0.01-1 mm/s) at 250 °C [67]. At last, the PMMCs with the DRXed grain size of ~ 0.5 μm and the volume fraction of Mg 17 Al 12 phase of 16-18 vol% were obtained [67].…”

“…To obtained the fine-grained PMMCs with high content of Mg 17 Al 12 phase, they attempted to extrude 5 μm 10 vol% SiCp/AZ91 with lower extrusion speed (0.01-1 mm/s) at 250 °C [67]. At last, the PMMCs with the DRXed grain size of ~ 0.5 μm and the volume fraction of Mg 17 Al 12 phase of 16-18 vol% were obtained [67]. The interaction between SiCp and DRX was responsible for the high content of Mg 17 Al 12 .…”

“…Comparison of mechanical properties among SiCp/AZ91 composites extruded with different speeds and other AZ91 matrix composites reinforced with SiCp: a YS, b UTS. Reproduced from[67], with permission from Elsevier…”