Record number :
2267148
Title of article :
Effect of extrusion ratio on microstructure and mechanical properties of Mg–Nd–Zn–Zr alloys prepared by a solid recycling process
Author/Authors :
Wen، نويسنده , , Lihua and Ji، نويسنده , , Zesheng and Li، نويسنده , , Xiaoliang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
6
From page :
1655
To page :
1660
Abstract :
Microstructures and room temperature mechanical properties of Mg–2.4Nd–0.6Zn–0.6Zr alloys prepared by a solid recycling process with different extrusion ratios were studied. The tensile properties of the materials were evaluated for the magnesium alloys in as-extruded and extruded-T6 conditions. With increasing extrusion ratio, the tensile strength and elongation to failure increases. The heat treatment results in a significant increase in tensile yield strength and ultimate tensile strength because of dispersive particles or fine precipitates. Moreover, the ductility decreases from as-extruded condition to extruded-T6 condition. The morphology of the fracture surfaces was examined by employing scanning electron microscope. The fracture mode is a mix mechanism with brittle fracture and gliding fracture.
Keywords :
Mg–Nd–Zn–Zr alloys , mechanical properties , Extrusion ratio , microstructure , Solid recycling process
Journal title :
Materials Characterization
Link To Document :