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Superplastic deformation of Al-Li-Cu-Mg alloy sheet.(Author abstract)

Shakesheff, A. J. ; Partridge, P. G.

Journal of Materials Science, April, 1986, Vol.21(4), p.1368 [Tạp chí có phản biện]

ISSN: 0022-2461

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  • Nhan đề:
    Superplastic deformation of Al-Li-Cu-Mg alloy sheet.(Author abstract)
  • Tác giả: Shakesheff, A. J. ; Partridge, P. G.
  • Chủ đề: Specialty Metals Industry
  • Là 1 phần của: Journal of Materials Science, April, 1986, Vol.21(4), p.1368
  • Mô tả: Byline: A. J. Shakesheff (1), P. G. Partridge (1) Abstract: Al-2.5 Li-1.2 Cu-0.6 Mg-0.12 Zr (wt%) alloy sheet was cold-rolled, solution heat-treated for 20 min at 510deg C, prestrained by 3% and superplastically deformed at 450 to 540deg C at strain rates between 1x10.sup.-4 and 2.8x10.sup.-1 sec.sup.-1. The maximum elongation obtained was 300%. Significant cavitation occurred above about 0.5 strain at a rate (void volume/unit strain) of 4% at 540deg C and 6% at 500deg C. The onset of cavitation coincided with a reduction in the room-temperature tensile properties after reheat-treatment. During annealing at 500 to 540deg C, grain coarsening near the sheet surface was associated with magnesium and lithium depletion. Superplastic deformation produced a fine equiaxed microstructure by dynamic recrystallization. Author Affiliation: Article History: Registration Date: 14/10/2004 Received Date: 07/05/1985 Accepted Date: 12/06/1985
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0022-2461

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