Abstract
An indentation test, using a steel ball and a diamond quadrangular pyramid indentor, were carried out on the {100} cleaved crystal face of KCI single crystals. The dislocation structures and strain hardening around an indent were examined. In addition, macroscopic deformations such as pile-up and the shape of the indent were investigated. It became clear that — because of the anisotropy of these crystals, plastic deformations, the crystals' area and the strain hardening around the indents — are larger in the 〈110〉 direction than in the 〈100〉 direction, and a regular correspondence relation was confirmed, experimentally, between hardness and dislocation density.
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Kobayashi, S., Okui, T. & Miura, S. Deformations in KCI single crystals by spherical and pyramidal indentor. J Mater Sci 28, 3506–3512 (1993). https://doi.org/10.1007/BF01159830
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DOI: https://doi.org/10.1007/BF01159830