Microindentation of a Zr57Ti5Cu20Ni 8Al10 bulk metallic glass

Rong Chen, Foqian Yang, Peter K. Liaw, Guojiang Fan, Hahn Choo

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Using microindentation technique, the indentation behavior of a Zr 57Ti5Cu20Ni8Al10 bulk-metallic glass is studied over a range of the indentation load from 200 mN to 500 mN. For the indentation load larger than 100 mN, the indentation load-depth curves during unloading display three regions, a) a fast unloading phase at the onset of unloading, b) a linear phase at which the indentation load is proportional to the indentation depth, and c) a slow unloading phase after the linear phase. The size of the linear region increases with the increase in the indentation load, and the slope is independent of the indentation load. The indentation hardness decreases slightly with the increase in the indentation load. The plastic energy dissipated in an indentation cycle is proportional to the 3/2 power of the indentation load. The effect of the indentation loading rate on the indentation behavior is discussed.

Original languageEnglish
Pages (from-to)1743-1747
Number of pages5
JournalMaterials Transactions
Issue number7
StatePublished - Jul 2007


  • Metallic glass
  • Microindentation
  • Plastic energy

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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