Effect of the LPSO volume fraction on the microstructure and mechanical properties of Mg–Y2X –Zn X alloys
The influence of the volume fraction of long-period stacking ordered structure (LPSO) on the
microstructure and mechanical properties in three extruded Mg 100-3 x Y 2 x Zn x alloys (x=
0.5, 1 and 1.5 at.%) has been studied. Two structures of LPSO phase coexist in these
extruded alloys, 18R and 14H. The 18R structure transforms to 14H structure gradually in
the course of the extrusion process. For the three alloys, the grain size in the vicinity of LPSO
phase particles is refined because of a particle-stimulated nucleation (PSN) mechanism …
microstructure and mechanical properties in three extruded Mg 100-3 x Y 2 x Zn x alloys (x=
0.5, 1 and 1.5 at.%) has been studied. Two structures of LPSO phase coexist in these
extruded alloys, 18R and 14H. The 18R structure transforms to 14H structure gradually in
the course of the extrusion process. For the three alloys, the grain size in the vicinity of LPSO
phase particles is refined because of a particle-stimulated nucleation (PSN) mechanism …
Abstract
The influence of the volume fraction of long-period stacking ordered structure (LPSO) on the microstructure and mechanical properties in three extruded Mg100-3x Y2x Zn x alloys (x = 0.5, 1 and 1.5 at.%) has been studied. Two structures of LPSO phase coexist in these extruded alloys, 18R and 14H. The 18R structure transforms to 14H structure gradually in the course of the extrusion process. For the three alloys, the grain size in the vicinity of LPSO phase particles is refined because of a particle-stimulated nucleation (PSN) mechanism. The reinforcing effect of the LPSO phase is active up to 523 K. Above this temperature, grain size effect becomes important. Accordingly, MgY1Zn0,5 extruded alloy shows the Highest mechanical strength for temperatures greater than 523 K.
Springer
以上显示的是最相近的搜索结果。 查看全部搜索结果