Effect of extrusion ratio on microstructure and mechanical properties of Mg-Nd-Zn-Zr alloys prepared by a solid recycling process
Journal Article
·
· Materials Characterization
OSTI ID:21137484
- School of Materials Science and Engineering, Harbin University of Science and Technology, 4 Linyuan Road, Harbin 150040 (China)
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.
- OSTI ID:
- 21137484
- Journal Information:
- Materials Characterization, Journal Name: Materials Characterization Journal Issue: 11 Vol. 59; ISSN 1044-5803; ISSN MACHEX
- Country of Publication:
- United States
- Language:
- English
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