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Journal of Materials Science

, Volume 32, Issue 21, pp 5811–5815 | Cite as

Creep-induced phase transformations in furnace cooled Zn-Al alloy

  • Y. H ZHU
  • E OROZCO
  • S MURPHY
Article

Abstract

Phase transformation and microstructural change of a furnace-cooled eutectoid Zn-Al alloy specimen (76 wt% Zn-22 wt% Al-2 wt% Cu) were investigated during creep testing by using scanning electron microscopy and X-ray diffraction techniques. Creep-induced decomposition of a metastable η′T phase and a four-phase transformation, α+ε→T′+η, occurred during the creep testing. Also microstructural change was observed from a lammellar structure partially into a spheroidized structure in the rupture part of the furnace-cooled alloy. The mechanism of the creep rupture of the furnace-cooled eutectoid Zn-Al alloy was also discussed.

Keywords

Creep Testing Lamellar Structure Minimum Creep Rate Rupture Part Bulk Part 

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Copyright information

© Chapman and Hall 1997

Authors and Affiliations

  • Y. H ZHU
    • 1
  • E OROZCO
    • 2
  • S MURPHY
    • 3
  1. 1.Instituto de Investigaciones en MaterialesUniversidad Nacional Autonoma de MexicoMexico DFMexico
  2. 2.Instituto de FisicaUniversidad Nacional Autonoma de MexicoMexico DFMexico
  3. 3.Aston UniversityBirminghamUK

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