Effect of HPT on age-hardening behavior in Cu-added excess Mg-type Al-Mg-Si alloys

S. Maruno, S. Saikawa, S. Hirosawa, T. Hamaoka, Z. Horita, S. Lee, D. Terada, K. Matsuda

研究成果: Conference contribution

抄録

Severe plastic deformation (SPD) techniques such as high pressure torsion (HPT) have been extensively researched to achieve. SPD process makes use of the plastic deformation where no change in the cross-sectional dimension of a work piece occurs during straining.In this work, the effect of HPT on aging behavior and microstructure in excess Mg-type Al-Mg-Si alloys including Cu. These alloys were investigated by hardness test and TEM observation. The results show that processing by HPT leads to significant grain refinement with a grain size of ~250nm. Age-hardening phenomenon is observed at 343K and 373K for the Al-Mg-Si alloys with HPT. A few density of dislocation in the crystal grain was observed. The typical needle-shaped precipitates of Al-Mg-Si alloys were not observed in the matrix.

本文言語English
ホスト出版物のタイトルTHERMEC 2013 Supplement
出版社Trans Tech Publications Ltd
ページ487-490
ページ数4
ISBN(印刷版)9783038350743
DOI
出版ステータスPublished - 2014
イベント8th International Conference on Processing and Manufacturing of Advanced Materials: Processing, Fabrication, Properties, Applications, THERMEC 2013 - Las Vegas, NV, United States
継続期間: 2013 12 22013 12 6

出版物シリーズ

名前Advanced Materials Research
922
ISSN(印刷版)1022-6680

Other

Other8th International Conference on Processing and Manufacturing of Advanced Materials: Processing, Fabrication, Properties, Applications, THERMEC 2013
国/地域United States
CityLas Vegas, NV
Period13/12/213/12/6

ASJC Scopus subject areas

  • 工学(全般)

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