Effect of volume fraction and geometry of pores on mechanical properties of porous bulk glassy Pd42.5 Cu30 Ni7.5 P20 alloys

Takeshi Wada, Makoto Kinaka, Akihisa Inoue

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28 Citations (Scopus)

Abstract

Porous Pd42.5 Cu30 Ni7.5 P20 bulk glassy alloy rods with porosities up to 71% were successfully prepared by water quenching in a 15 MPa hydrogen atmosphere, followed by heat treatment in a supercooled liquid state. Pores with sizes up to 80 μm were homogeneously distributed over the whole cross-sectional area. Under compressive deformation, the porous alloys with porosities exceeding 41% did not show macroscopic fracture in a wide compressive strain range up to 0.6. Mechanical tests with porous alloy rods whose potes are anisotropically oriented indicate that the plasticity of the porous alloy is strongly affected by stress concentration factor.

Original languageEnglish
Pages (from-to)1041-1047
Number of pages7
JournalJournal of Materials Research
Volume21
Issue number4
DOIs
Publication statusPublished - 2006 Apr

ASJC Scopus subject areas

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

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