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


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

MATERIALS CHARACTERIZATION, cilt.59, sa.6, ss.729-736, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 59 Konu: 6
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.matchar.2007.06.005
  • Dergi Adı: MATERIALS CHARACTERIZATION
  • Sayfa Sayıları: ss.729-736

Özet

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.