Diffusion in fine-grained Al alloys having low and high angle grain boundaries

Takeshi Fujita, Zenji Horita, Terence G. Langdon

研究成果: Conference article査読

5 被引用数 (Scopus)

抄録

Diffusion-couple experiments were conducted on fine-grained alloys in the Al-Mg and Al-Zn systems. It is well known that grain refinement to the submicrometer range is feasible using the process of equal-channel angular pressing (ECAP). In addition, this process can be used also to produce microstructures with predominantly low-angle or high-angle grain boundaries by controlling the shearing direction and the extent of the imposed strain. Alloys having small grain sizes but different misorientation angles were used to make diffusion couples and the interdiffusion coefficients were determined by measuring the concentration profiles across the interfaces. The contribution of grain boundary diffusion to the overall diffusion was evaluated in terms of the alloying elements and the misorientation angles.

本文言語English
ページ(範囲)1061-1066
ページ数6
ジャーナルMaterials Science Forum
396-402
2
DOI
出版ステータスPublished - 2002
イベントAluminium Alloys 2002 Their Physical and Mechnaical Properties: Proceedings of the 8th International Conference ICAA8 - Cambridge, United Kingdom
継続期間: 2002 7月 22002 7月 5

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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