Influence of liquid-phase inclusion on high-temperature deformation behavior in Al-Bi alloys

J. Koike, K. Miki, K. Maruyama, H. Oikawa

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Tensile properties of an Al-3.4mass% Bi alloy up to 700 K were studied to understand the effects of the liquid Bi phase. Strain-rate sensitivity near the melting point of Bi was found to take values in a range of 0.17-0.31. Elongation showed a maximum value slightly above the melting temperature, indicating that the liquid phase could enhance tensile elongation in the Al-Bi alloy. Above the melting temperature, the dislocation density was found to decrease and the increment of the cavity volume fraction with strain slowed down in comparison to the results below the melting temperature. The increase of the tensile elongation was attributed to an efficient stress accommodation mechanism provided by the liquid phase.

Original languageEnglish
Pages (from-to)525-528
Number of pages4
JournalMaterials Science and Engineering A
Volume234-236
DOIs
Publication statusPublished - 1997 Aug 30

Keywords

  • Al-Bi alloy
  • Ductility
  • Liquid phase
  • Mechanical property

ASJC Scopus subject areas

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

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