Microstructural evolution in pure aluminum processed by high-pressure torsion

Yuki Ito, Zenji Horita

研究成果: ジャーナルへの寄稿記事

153 引用 (Scopus)

抄録

Pure Al (99.99%) was processed using high-pressure torsion (HPT), and Vickers microhardness was measured along the diameter of the disk samples. When all hardness values were plotted as a function of equivalent strain, they fell on a single line having three distinctive regions. The hardness increases with the strain in the first region and, after taking a maximum at an equivalent strain of ∼2, the hardness decreases with further straining in the second region. The third region appears at an equivalent strain of ∼6 or higher as a steady state where the hardness remains unchanged. Electron backscatter diffraction analysis and transmission electron microscopy were conducted in the corresponding regions and microstructural evolution with straining was examined. Grain refining mechanism using HPT was discussed based on the change in the hardness and microstructures.

元の言語英語
ページ(範囲)32-36
ページ数5
ジャーナルMaterials Science and Engineering A
503
発行部数1-2
DOI
出版物ステータス出版済み - 3 15 2009

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Microstructural evolution
Aluminum
Torsional stress
torsion
hardness
Hardness
aluminum
refining
Electron diffraction
Microhardness
microhardness
Refining
Transmission electron microscopy
transmission electron microscopy
microstructure
Microstructure
diffraction
electrons

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

Microstructural evolution in pure aluminum processed by high-pressure torsion. / Ito, Yuki; Horita, Zenji.

:: Materials Science and Engineering A, 巻 503, 番号 1-2, 15.03.2009, p. 32-36.

研究成果: ジャーナルへの寄稿記事

Ito, Yuki ; Horita, Zenji. / Microstructural evolution in pure aluminum processed by high-pressure torsion. :: Materials Science and Engineering A. 2009 ; 巻 503, 番号 1-2. pp. 32-36.
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