The age-precipitations structure of Al-Mg-Ge alloy aged at 473K

A. Kawai*, K. Watanabe, K. Matsuda, S. Ikeno

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The Al-Mg-Ge alloy is one of the age-hardening aluminum alloy after solution heat treatment. It has been proposed that the age-precipitation behavior of Al-Mg-Ge alloy is different from that of Al-Mg-Si alloy according to our previous works about the microstructure on Al-Mg-Ge alloy over-aged at 523K. For example, The hardness of peak aged Al-1.0mass%Mg2Ge alloy is higher than that of Al-1.0mass%Mg2Si alloy. The precipitates in the over-aged samples have been classified as some metastable phases, such as the β'-phase and Type-A precipitates and equilibrium phase of β-Mg2Ge by TEM observation. There a few reports about microstructure on Al-Mg-Ge alloys observed by TEM for different aging times. The age-precipitations structure of Al-Mg-Ge alloy has not been became clear. In this work, TEM observation was investigated the microstructure on Al-1.0mass%Mg2Ge alloy for difference aging times aged at 473K.

Original languageEnglish
Pages (from-to)969-970
Number of pages2
JournalArchives of Metallurgy and Materials
Volume60
Issue number2A
DOIs
StatePublished - 2015

Keywords

  • Age-precipitate
  • Age-precipitation sequence
  • Al-Mg-Ge alloy
  • TEM

ASJC Scopus subject areas

  • Metals and Alloys

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