Fabrication of submicrometer-grained Zn-22% Al by torsion straining

Minoru Furukawa, Zenji Horita, Minoru Nemoto, Ruslan Z. Valiev, Terence G. Langdon

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Abstract

The Zn-22% Al eutectoid alloy is capable of exhibiting very high superplastic elongations, in excess of 2000% in tension, when the grain size is in the range of ∼1-10 μm. This paper describes the fabrication of a submicrometer grain size in the Zn-22% Al alloy by subjecting the samples to intense plastic straining in torsion under high pressure (∼5 GPa) at room temperature. Observations after straining revealed a heterogeneous microstructure with grain sires in the range of ∼0.1-0.5 μm. As a result of the low melting temperature of the alloy, the high internal stresses introduced by torsion straining are relaxed and the grain boundaries are close to an equilibrium configuration.

Original languageEnglish
Pages (from-to)2128-2130
Number of pages3
JournalJournal of Materials Research
Volume11
Issue number9
DOIs
Publication statusPublished - Sep 1996

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Furukawa, M., Horita, Z., Nemoto, M., Valiev, R. Z., & Langdon, T. G. (1996). Fabrication of submicrometer-grained Zn-22% Al by torsion straining. Journal of Materials Research, 11(9), 2128-2130. https://doi.org/10.1557/JMR.1996.0270