TEM observation of Cu and Ag addition Al-Mg-Si alloys

Momoko Tokuda, Kenji Matsuda, Takeshi Nagai, Junya Nakamura, Tokimasa Kawabata, Susumu Ikeno

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

Abstract

It has been known that Cu- and Ag-addition Al-1.0mass%Mg 2Si alloys (Al-Mg-Si-Cu alloy and Al-Mg-Si-Ag alloy) have higher hardness and elongation than those of Al-1.0mass%Mg 2Si alloy. In this study, the aging behaviour of Al-Mg-Si-Cu alloy, Al-Mg-Si-Ag alloy and (Cu+Ag)-addition Al -1.0 mass% Mg 2Si alloy (Al -Mg -Si -Cu-Ag alloy) has been investigated by hardness test and TEM observation. The Al-Mg-Si-Cu-Ag alloy has the fastest age-hardening rate in the early aging period and the finest microstructure at the peak hardness among three alloys. Therefore the microstructure of the precipitate in Al-Mg-Si-Cu-Ag alloy has been investigated by HRTEM observation to understand the effect of Cu and Ag addition on aging precipitation.

Original languageEnglish
Title of host publicationTHERMEC 2011 Supplement
Pages81-83
Number of pages3
DOIs
Publication statusPublished - 2012
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

  • Age-hardening
  • Al-Mg-Si
  • Copper
  • HRTEM
  • Precipitates
  • Silver

ASJC Scopus subject areas

  • Engineering(all)

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