Grain refinement of high-purity FCC metals using equal-channel angular pressing

Zenji Horita*, Kaoru Kishikawa, Keiichi Kimura, Kohei Tatsumi, Terence G. Langdon

*この研究の対応する著者

研究成果: Conference contribution

21 被引用数 (Scopus)

抄録

Equal-channel angular pressing (ECAP) is a valuable technique for refining grain sizes to the submicrometer or the nanometer range. This study explores the reason for the difference in the grain refining behavior between pure Al and pure Cu. First, very high purity levels were adopted in order to minimize any effects of impurities: 99.999% for Al and 99.99999% for Cu. Second, high purity (99.999%) Au was also used in order to examine the effect of stacking fault energy. All three pure metals were subjected to ECAP and microstructural observations and hardness measurements were undertaken with respect to the number of ECAP passes. It is concluded that the stacking fault energy plays an important role and accounts for the difference in the grain refining behavior in the ECAP process.

本文言語English
ホスト出版物のタイトルRecrystallization and Grain Growth III - Proceedings of the Third International Conference on Recrystallization and Grain Growth, ReX and GG III
出版社Trans Tech Publications Ltd
ページ1273-1278
ページ数6
PART 2
ISBN(印刷版)087849443X, 9780878494439
DOI
出版ステータスPublished - 2007 1月 1
外部発表はい
イベント3rd International Conference on Recrystallization and Grain Growth, ReX GG III - Jeju Island, Korea, Republic of
継続期間: 2007 6月 102007 6月 15

出版物シリーズ

名前Materials Science Forum
番号PART 2
558-559
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Conference

Conference3rd International Conference on Recrystallization and Grain Growth, ReX GG III
国/地域Korea, Republic of
CityJeju Island
Period07/6/1007/6/15

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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