HRTEM observation of precipitates in Mg-Gd-Zr and Mg-Y-Zr alloys aged at 423 K

Tokimasa Kawabata*, Kenji Matsuda, Susumu Ikeno

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

High resolution transmission electron microscopy (HRTEM) observation was performed to clarify the early stage of precipitation in Mg-Gd(-Zr) alloy and Mg-Y(-Zr) alloy aged at 423 K. At the early stage of agigng at 423 K, the intensity of the diffuse spots become higher at the 1/2 distance of 1100 or 2110 corresponding to magnesium matrix spots with aging time. Contrasts of mono layers on {1 1̄00}Mg planes, and the feature of D019 type structure, precipitates with five layers corresponding the feature of (020) β' plane and β' phase co-existed and β' phase formed predominantly in the peak aged Mg-Gd(-Zr) alloy at 423 K, wheres in the peak aged Mg-Y(-Zr) alloy at 423 K, monolayer and precursor of precipitates with five layers corresponding the feature of (020) β' plane formed predominantly.

Original languageEnglish
Title of host publicationTHERMEC 2011
PublisherTrans Tech Publications Ltd
Pages1205-1208
Number of pages4
ISBN (Print)9783037853030
DOIs
StatePublished - 2012
Event7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011 - Quebec City, QC, Canada
Duration: 2011/08/012011/08/05

Publication series

NameMaterials Science Forum
Volume706-709
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011
Country/TerritoryCanada
CityQuebec City, QC
Period2011/08/012011/08/05

Keywords

  • Aging
  • High resolution transmission electron microscopy
  • Magnesium-rare earth alloy
  • Precipitate

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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