Indentation behavior of aluminum prepared by equal channel angular pressing

Lingling Peng, Fuqian Yang, Kenji Okazaki

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


The plastic deformation of as-ECAP Al was investigated by using an indentation technique. The indentation load was found to be proportional to the 3/2 power of the maximum indentation depth. The as-ECAP Al displayed different unloading behavior from the annealed Al due to the large plastic deformation introduced in the ECAP process, which suggests the change in the microstructure. A relation between the plastic energy dissipated in the indentation and the indentation load was derived by using dislocation theory - the plastic energy is proportional to the 3/2 power of the indentation load, which was supported by the experimental results.

Original languageEnglish
Title of host publicationUltrafine Grained Materials III
EditorsY.T. Zhu, T.G. Langdon, R.Z. Valiev, S. Lee Semiatin, al et al
Number of pages6
StatePublished - 2004
EventUltrafine Grained Materials III - Charlotte, NC., United States
Duration: Mar 14 2004Mar 18 2004

Publication series

NameUltrafine Grained Materials III


ConferenceUltrafine Grained Materials III
Country/TerritoryUnited States
CityCharlotte, NC.


  • Aluminum
  • Dislocation density
  • ECAP
  • Microindentation

ASJC Scopus subject areas

  • Engineering (all)


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