Publisher： John Wiley & Sons Inc
E-ISSN： 1527-2648|17|6|876-884
ISSN： 1438-1656
Source： ADVANCED ENGINEERING MATERIALS (ELECTRONIC), Vol.17, Iss.6, 2015-06, pp. : 876-884
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Due to low density and other features, magnesium (Mg) alloys are becoming one of key engineering structural materials for aerospace and automotive industries. In the meantime, conventional Mg alloys are limited because of their low mechanical properties, especially at high temperatures. In this study, a new Mg–12Ymm–4Zn (Ymm = Y‐rich misch metal, wt%) extruded alloy was prepared by water‐cooled mold casting and hot extrusion, and its ultimate tensile strength (UTS) and tensile yield strength (TYS) could reach 314 and 231 MPa at 300 °C, which were slightly lower than those at room temperature (338 and 278 MPa). To date, there is rare report on such high strength for Mg alloys at 300 °C, and it has been confirmed that introducing a large volume fraction of long‐period stacking ordered (LPSO) phase in combination with nano‐spaced stacking faults (SFs) is an effective pathway to develop deformed Mg alloys with high strength at elevated temperatures.
Related content
A High Strength and Toughness Mg-Y-Ni Alloy with a Long-Period Stacking Ordered Structure
Materials Science Forum, Vol. 2017, Iss. 898, 2017-07 ,pp. :
Access to resources
Recommend
By Hagihara Koji Yamasaki Michiaki Honnami Masahito Izuno Hitoshi Tane Masakazu Nakano Takayoshi Kawamura Yoshihito
Philosophical Magazine, Vol. 95, Iss. 2, 2015-01 ,pp. :
Influence of Long Period Stacking Ordered Phase on Non-Uniform Deformation in Cast Mg-Zn-Y Alloys
Materials Science Forum, Vol. 2015, Iss. 816, 2015-05 ,pp. :