Al-Ag合金のG.P.Zoneの冷間加工による変形について

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タイトル別名
  • On the Deformation of Zones in Al-Ag Alloys by Cold-Working
  • Al-Ag ゴウキン ノ G.P.Zone ノ レイカン カコウ ニ ヨル ヘンケイ ニ ツイテ

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The deformation parameter k(=Ra⁄Ra, Ra: radius of ellipsoid of deformed zones parallel to the rolling direction, Rb: radius parallel to the rolling plane and perpendicular to the rolling direction) of various size of zones, which were formed in the quenched Al-30 wt%Ag alloy under different annealing conditions, were measured by the X-ray small-angle-scattering effects. The following results was obtained: (1) When the reduction of thickness by cold-rolling was 50%, the values of k were 1.6∼1.2 for all specimens, on the other hand, the deformation parameter k′ for crystal grains was 2.20∼1.94. (2) When the reduction of thickness was the same as (1), the values of k for the specimens annealed at the reversion temperatures (190° and 210°) and cold-rolled were about 1.5, and the values of k for specimens annealed at the temperature of low-temperature aging (110°, 130° and 150°) and cold-rolled did not exceed 1.35. (3) These facts show that the zones formed by low-temperature aging are more difficult to deform, and that the zones must be one of the main causes of low-temperature age-hardening. (4) The sizes of zones do not affect the deformability of the zones.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 23 (3), 177-181, 1959

    公益社団法人 日本金属学会

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