Microstructures of extruded Mg-12Gd-1Zn-0.5Zr and Mg-12Gd-4Y-1Zn-0.5Zr alloys
- 1. Department of Materials Science and Engineering, Xi'an Technological University, 4 North Jinhua Road, Xi'an 710032 (China)
Description
The microstructure characteristics of two extruded magnesium alloys, Mg-12Gd-1Zn-0.5Zr (GZ121) and Mg-12Gd-4Y-1Zn-0.5Zr (GWZ1241), were studied with optical microscopy, scanning electron microscopy- and transmission electron microscopy-energy-dispersive X-ray analysis. Dynamic recrystallized fine grains were observed in the two extruded alloys. Coarse rod-shaped or developed dendrite eutectic phases Mg5(Zn0.5Gd0.5) coexisted in the alloy GZ121. Compared with the alloy G Z121, the size and morphology of the eutectic phases in extruded GWZ1241 alloy changed remarkably. The composition of eutectic phases in the alloy GWZ1241 is like Mg5(Zn0.5Gd0.4Y0.1). Two non-equilibrium phases, lamellar-shaped MgGdZn5 and block-shaped Mg3(Gd0.5,Y0.5), are found in GWZ1241 alloy
Additional details
Identifiers
- DOI
- 10.1016/j.scriptamat.2006.09.008;
- PII
- S1359-6462(06)00678-6;
Publishing Information
- Journal Title
- Scripta Materialia
- Journal Volume
- 56
- Journal Issue
- 2
- Journal Page Range
- p. 137-140
- ISSN
- 1359-6462
- CODEN
- SCMAF7
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38064102
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- DENDRITES; EQUILIBRIUM; EUTECTICS; MAGNESIUM ALLOYS; MICROSTRUCTURE; MORPHOLOGY; OPTICAL MICROSCOPY; RODS; SCANNING ELECTRON MICROSCOPY; TRANSMISSION ELECTRON MICROSCOPY; X RADIATION; YTTRIUM
- Descriptors DEC
- ALLOYS; CRYSTALS; ELECTROMAGNETIC RADIATION; ELECTRON MICROSCOPY; ELEMENTS; IONIZING RADIATIONS; METALS; MICROSCOPY; RADIATIONS; TRANSITION ELEMENTS
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.