Aging behavior of Al-Mg-Ge alloys with different Mg 2Ge contents

Tomoatsu Murakami, Kenji Matsuda, Takeshi Nagai, Junya Nakamura, Tokimasa Kawabata, Susumu Ikeno

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is known that Al-Mg-Ge alloy shows the similar precipitation sequence to Al-Mg-Si alloy, and its equilibrium phase is β-Mg 2Ge according to its phase diagram. In this study, the precipitation sequence of Al-Mg-Ge alloys containing different contents of Mg 2Ge has been investigated by hardness test, TEM and HRTEM observation to understand the effect of Mg 2Ge contents on age-hardening behavior of the alloys. The hardness of as-quenched and peak-aged samples have been improved by increasing Mg 2Ge contents. The precipitates in the peak-aged samples have been classified into some metastable phases, such as the β'-phase and parallelogram-type precipitate by HRTEM observation. The relative frequency of these precipitates in the is has been changed with Mg 2Ge contents.

Original languageEnglish
Title of host publicationTHERMEC 2011 Supplement
Pages63-66
Number of pages4
DOIs
Publication statusPublished - 2012 Jan 4
Event7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011 - Quebec City, QC, Canada
Duration: 2011 Aug 12011 Aug 5

Publication series

NameAdvanced Materials Research
Volume409
ISSN (Print)1022-6680

Other

Other7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011
CountryCanada
CityQuebec City, QC
Period11/8/111/8/5

Keywords

  • Aging
  • Al-Mg-Ge
  • HRTEM
  • Mg Ge
  • Precipitation
  • TEM
  • β'

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Aging behavior of Al-Mg-Ge alloys with different Mg <sub>2</sub>Ge contents'. Together they form a unique fingerprint.

  • Cite this

    Murakami, T., Matsuda, K., Nagai, T., Nakamura, J., Kawabata, T., & Ikeno, S. (2012). Aging behavior of Al-Mg-Ge alloys with different Mg 2Ge contents. In THERMEC 2011 Supplement (pp. 63-66). (Advanced Materials Research; Vol. 409). https://doi.org/10.4028/www.scientific.net/AMR.409.63