The contribution of long-period stacking-ordered structure (LPSO) to high strength-high ductility combination and nanoscale deformation behavior of magnesium-rare earth alloy

The nanoscale deformation behavior of high strength (240 MPa)-high ductility (21.4%) combination Mg-rare earth alloy with long-period stacking-ordered structure was studied via nanoindentation and electron microscopy, and the behavior compared with the low strength (65 MPa)-good ductility (15%) alloy without LPSO structure. In non-LPSO alloy, basal slip mainly occurred, while in LPSO-containing alloy, the LPSO changed the deformation...