Characterization of phases in Mg-4Y-4Sm-0.5Zr alloy processed by heat treatment
Creators
- 1. National Engineering Research Center of Light Alloys Net Forming, School of Materials Science and Engineering, Shanghai Jiaotong University, 1954 Huashan Road, 200030 Shanghai (China)
Description
Heat treatments consisting of solution at 798 K for 8 h and artificial ageing at 448, 473 and 498 K were carried out on Mg-4Y-4Sm-0.5Zr alloy. Characterization of phases in Mg-4Y-4Sm-0.5Zr alloy during heat treatments has been investigated, using transmission electron microscopy and thin foil energy dispersive X-ray spectroscopy. The eutectic phase with composition of Mg5(Sm0.6Y0.4) has an fcc crystal structure (a = 2.326 nm). The quadrate phase with an fcc crystal structure (a = 0.5581 nm) was found near grain-boundaries in the solution-treated state. The fine plate-shaped precipitate phase which was found to play an important role in the peak-aged state was determined as β'. The ultimate tensile strength of 337 MPa, yield strength of 220 MPa and elongation of 3.7% are attained in the peak-aged state
Additional details
Identifiers
- DOI
- 10.1016/j.msea.2006.05.011;
- PII
- S0921-5093(06)00617-4;
Publishing Information
- Journal Title
- Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
- Journal Volume
- 428
- Journal Issue
- 1-2
- Journal Page Range
- p. 295-300
- ISSN
- 0921-5093
- CODEN
- MSAPE3
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38079369
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- AGING; ELONGATION; EUTECTICS; FCC LATTICES; FOILS; GRAIN BOUNDARIES; HEAT TREATMENTS; MANGANESE ALLOYS; PEAKS; PLATES; PRECIPITATION; TENSILE PROPERTIES; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY; YIELD STRENGTH; ZIRCONIUM ALLOYS
- Descriptors DEC
- ALLOYS; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CUBIC LATTICES; DEFORMATION; DIFFRACTION; ELECTRON MICROSCOPY; MECHANICAL PROPERTIES; MICROSCOPY; MICROSTRUCTURE; SCATTERING; SEPARATION PROCESSES; SPECTROSCOPY; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.