Journal of Materials Science

, Volume 9, Issue 4, pp 543–546 | Cite as

The quench rate-dependent formation of lamellae of the metastable rhombohedral R phase in an aluminium-29 at.% zinc alloy

  • K. N. Melton
  • J. W. Edington
Papers

Abstract

The precipitate morphology developed by room temperature ageing of an aluminium 29 at. % zinc alloy has been found to depend on quenching rate. For slow quenches there is a slow development of fine R phase laths together with large precipitates of zinc, but for fast quenches well-defined colonies of lamellae of R phase form rapidly. The results are rationalized in terms of the strain field interaction between R phase precipitates.

Keywords

Polymer Aluminium Zinc Phase Form Strain Field 

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Copyright information

© Chapman and Hall Ltd 1974

Authors and Affiliations

  • K. N. Melton
    • 1
  • J. W. Edington
    • 1
  1. 1.Department of Metallurgy and Materials ScienceUniversity of CambridgeCambridgeUK

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