Published March 25, 2005 | Version v1
Journal article Metadata-only

Chemistry of nanoscale precipitates in Mg-2.1Gd-0.6Y-0.2Zr (at.%) alloy investigated by the atom probe technique

Creators

  • 1. Graduate School of Applied and Pure Sciences, University of Tsukuba, Tsukuba 305-8571 (Japan)
  • 2. Metallic Nanostructure Group, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba 305-0047 (Japan)
  • 3. Graduate School of Applied and Pure Sciences, University of Tsukuba, Tsukuba 305-8571 (Japan) and Metallic Nanostructure Group, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba 305-0047 (Japan)
  • 4. Department of Mechanical Engineering, Nagaoka University of Technology, Nagaoka 940-2188 (Japan)

Description

The precipitation sequence of a Mg-2.1Gd-0.6Y-0.2Zr (at.%) alloy at 200 deg. C was investigated by transmission electron microscopy (TEM), and the chemical compositions of the precipitates observed in different stages of the sequence were analyzed by the three-dimensional atom probe (3DAP) technique. The precipitation sequence is described as supersaturated solid solution (SSS) → β' (D019 Mg3X) → β' (bco Mg15X3) → β phase (Mg5X). There are structural similarities in each phase and the phase evolution occurs continuously by decreasing the rare earth content when β' transforms to β'

Additional details

Identifiers

DOI
10.1016/j.msea.2004.12.035;
PII
S0921-5093(05)00002-X;

Publishing Information

Journal Title
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
Journal Volume
395
Journal Issue
1-2
Journal Page Range
p. 301-306
ISSN
0921-5093
CODEN
MSAPE3

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
38073580
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CHEMICAL COMPOSITION; GADOLINIUM; MAGNESIUM; NANOSTRUCTURES; ORTHORHOMBIC LATTICES; PRECIPITATION; SOLID SOLUTIONS; TRANSMISSION ELECTRON MICROSCOPY; YTTRIUM; ZIRCONIUM ALLOYS
Descriptors DEC
ALKALINE EARTH METALS; ALLOYS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DISPERSIONS; ELECTRON MICROSCOPY; ELEMENTS; HOMOGENEOUS MIXTURES; METALS; MICROSCOPY; MIXTURES; RARE EARTHS; SEPARATION PROCESSES; SOLUTIONS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.