The indentation size effect in Pd40Cu30Ni10P20bulk metallic glass

N. Li, Kang Cheung Chan, L. Liu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

22 Citations (Scopus)

Abstract

The indentation size effect (ISE) in Pd40Cu30Ni10P20bulk metallic glass was investigated through instrumented nanoindentation under different applied loads. It was found that both the indentation hardness and the reduced contact modulus decrease with an increase in the indentation depth. The ISE is more pronounced in the relaxed alloy than in the as-cast ones. Pop-in events and the subsurface shear band patterns underneath the nanoindenter are also observed to be sensitive to the depth of penetration. The ISE was discussed in terms of strain-induced softening and friction that is related to the ratio of the surface area to volume.
Original languageEnglish
Article number155415
JournalJournal of Physics D: Applied Physics
Volume41
Issue number15
DOIs
Publication statusPublished - 7 Aug 2008

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

Cite this