Area determination with pile-up and sink-in in nanoindentation of oxygen containing titanium

Frederik B. Kværndrup*, Christian Engelbrekt, Ömer C. Kücükyildiz, Marcel A.J. Somers, Thomas L. Christiansen, Grethe Winther

*Corresponding author for this work

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Abstract

Homogenous thin foils of titanium with oxygen in interstitial solid solution covering the broad solubility range of O in h.c.p. Ti, were used to investigate the sink-in and pile-up occurring during nanoindentation. The anisotropic response and indent areas were accurately analyzed with atomic force microscopy. The mechanical properties and the indent areas were assessed using both the Oliver&Pharr method and a newer method incorporating corrections for indenter geometry and an improved parameter extraction. The newer method accurately accounts for pile-up.
Original languageEnglish
Article number103218
JournalMaterials Today Communications
Volume30
Number of pages9
ISSN2352-4928
DOIs
Publication statusPublished - 2022

Keywords

  • Interstitial alloys
  • Mechanical Properties
  • Atomic force microscopy
  • Elasticity
  • Anisotropy

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