The effect of Ag-addition on precipitation sequence in Al-1.0mass%Mg 2Si-excess 0.4mass%Si alloy

Kenji Niwa, Kenji Matsuda, Junya Nakamura, Tatsuo Sato, Susumu Ikeno

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

It is well known that Ag additional Al-1.0mass%Mg2Si-excess0. 4mass%Si alloy (ex. Si-Ag alloy) has higher hardness and elongation than those of Al-1.0mass%Mg2Si-excess 0.4mass%Si alloy (ex. Si alloy). However, precipitation sequence of ex. Si-Ag alloy is not clear yet. In this work, precipitation sequence of ex. Si-Ag alloy has been investigated using high resolution transmission electron microscopy and X-ray energy dispersive spectroscopy. Precipitates were classified into several kinds by HRTEM images and SAED patterns, and relative frequencies of precipitates were also investigated. Its precipitation sequence was compared with that of ex. Si alloy. Type-A, Type-B and Type-C precipitates as special metastable phase in excess Si type Al-Mg-Si alloy, has been observed in ex. Si-Ag alloy, but β' phase increased and Type-A and Type-B precipitate decreased in this study. Type-A precipitate was found at only grain boundary.

本文言語English
ホスト出版物のタイトルSelected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
出版社Trans Tech Publications Ltd
ページ239-242
ページ数4
PART 1
ISBN(印刷版)0878494626, 9780878494620
DOI
出版ステータスPublished - 2007 1 1
イベント6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6 - Jeju, Korea, Republic of
継続期間: 2007 11 52007 11 9

出版物シリーズ

名前Materials Science Forum
番号PART 1
561-565
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

Other6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
国/地域Korea, Republic of
CityJeju
Period07/11/507/11/9

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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