Analysis of ISE in dynamic hardness measurements of β-Sn single crystals using a depth-sensing indentation technique

Sahin O., Uzun O., Kolemen U., UÇAR N.

MATERIALS CHARACTERIZATION, vol.59, no.6, pp.729-736, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 59 Issue: 6
  • Publication Date: 2008
  • Doi Number: 10.1016/j.matchar.2007.06.005
  • Journal Name: MATERIALS CHARACTERIZATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.729-736
  • Ankara University Affiliated: No

Abstract

The dynamic indentation tests on (001) plane beta-Sn single crystals having different growth directions under different peak indentation test load (10, 20, 30, 40, and 50 mN) has been investigated. The experimental results reveal that the measured hardness values exhibit a peak-load dependence, i.e., indentation size effect (ISE). Such peak-load dependence is then analyzed using the Meyer's law, the Hays-Kendall's approach, the Elastic/Plastic Deformation model, the Proportional Specimen Resistance (PSR) model, and the Modified PSR (MPSR) model. As a result, Modified PSR model is found to be the most effective for dynamic hardness determination of beta-Sn single crystals. (C) 2007 Elsevier Inc. All rights reserved.