Equal-channel angular pressing and high-pressure torsion of pure copper: Evolution of electrical conductivity and hardness with strain

Kaveh Edalati, Kazutaka Imamura, Takanobu Kiss, Zenji Horita

研究成果: ジャーナルへの寄稿学術誌査読

66 被引用数 (Scopus)

抄録

Pure Cu (99.99%) is processed by equal-channel angular pressing (ECAP) and by high-pressure torsion (HPT). The electrical resistivity as well as the microhardness increases with an increase in the equivalent strain at an early stage of straining, but saturates to a steady state at the equivalent strains more than ̃20. At the steady state, the samples processed by ECAP and HPT show a significant increase in the hardness (̃270%) but little decrease in the electrical conductivity (̃12%) when compared to the annealed state. Transmission electron microscopy confirms that the microstructure does not change at the saturated level with further straining. Evolutions of hardness, electrical conductivity and microstructures are also investigated after post-HPT annealing.

本文言語英語
ページ(範囲)123-127
ページ数5
ジャーナルMaterials Transactions
53
1
DOI
出版ステータス出版済み - 2012

!!!All Science Journal Classification (ASJC) codes

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

フィンガープリント

「Equal-channel angular pressing and high-pressure torsion of pure copper: Evolution of electrical conductivity and hardness with strain」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル