Grain boundary migration of 〈110〉 tilt ∑11 and ∑21 boundaries in pure aluminum

Fuyuki Yoshida, Masato Uehara, Ken Ichi Ikeda, Hideharu Nakashima, Hiroshi Abe

研究成果: ジャーナルへの寄稿Conference article

2 引用 (Scopus)

抄録

Migrations of 〈110〉 tilt ∑11 and ∑27 boundaries in 99.99% purity aluminum have been investigated by Sun and Bauer technique as a function of temperature. In the JE11 tilt boundary, the activation energy for grain boundary migration is about 1/2 of the energy for Al-atom bulk-diffusion, indicating that the boundary motion may be governed by the grain boundary diffusion. While in the ∑27 tilt boundary, the activation energy for grain boundary migration is about 125kJ/mol, which agrees with the energy for Al-atom bulk-diffusion. Study of boundary structure observation by high resolution electron microscopy revealed that the grain boundary structure of ∑27 tilt boundary was consisted of edge dislocation array in which a space between dislocations was very short. It is considered that climb motion of the dislocations controlled to the motion of tilt boundaries consisted of edge dislocation array. From these results, it is concluded that the boundary motion of ∑27 tilt boundary may be governed by climb motion of their dislocations controlled by Al-atom bulk-diffusion.

元の言語英語
ページ(範囲)835-840
ページ数6
ジャーナルMaterials Science Forum
467-470
発行部数II
出版物ステータス出版済み - 12 1 2004
イベントProceedings of the Second Joint International Conferences on Recrystallization and Grain Growth, ReX and GG2, SF2M - Annecy, フランス
継続期間: 8 30 20049 3 2004

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Aluminum
Grain boundaries
grain boundaries
aluminum
Edge dislocations
Atoms
Activation energy
High resolution electron microscopy
Dislocations (crystals)
edge dislocations
Sun
activation energy
atoms
electron microscopy
purity
sun
Temperature
energy
high resolution

All Science Journal Classification (ASJC) codes

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

これを引用

Yoshida, F., Uehara, M., Ikeda, K. I., Nakashima, H., & Abe, H. (2004). Grain boundary migration of 〈110〉 tilt ∑11 and ∑21 boundaries in pure aluminum. Materials Science Forum, 467-470(II), 835-840.

Grain boundary migration of 〈110〉 tilt ∑11 and ∑21 boundaries in pure aluminum. / Yoshida, Fuyuki; Uehara, Masato; Ikeda, Ken Ichi; Nakashima, Hideharu; Abe, Hiroshi.

:: Materials Science Forum, 巻 467-470, 番号 II, 01.12.2004, p. 835-840.

研究成果: ジャーナルへの寄稿Conference article

Yoshida, F, Uehara, M, Ikeda, KI, Nakashima, H & Abe, H 2004, 'Grain boundary migration of 〈110〉 tilt ∑11 and ∑21 boundaries in pure aluminum', Materials Science Forum, 巻. 467-470, 番号 II, pp. 835-840.
Yoshida, Fuyuki ; Uehara, Masato ; Ikeda, Ken Ichi ; Nakashima, Hideharu ; Abe, Hiroshi. / Grain boundary migration of 〈110〉 tilt ∑11 and ∑21 boundaries in pure aluminum. :: Materials Science Forum. 2004 ; 巻 467-470, 番号 II. pp. 835-840.
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