Use of a nanoindentation fatigue test to characterize the ductile-brittle transition

Simple item page
dc.creatorSkrzypczak, Mathieu
dc.creatorGuerret-Piecourt, Christelle
dc.creatorBec, Sandrine
dc.creatorLoubet, Jean-Luc
dc.creatorGuerret, Olivier
dc.date2008-08-03
dc.date.accessioned2026-07-07T09:54:29Z
dc.date.available2026-07-07T09:54:29Z
dc.descriptionWhen considering grinding of minerals, scaling effect induces competition between plastic deformation and fracture in brittle solids. The competition can be sketched by a critical size of the material, which characterizes the ductile-brittle transition. A first approach using Vickers indentation gives a good approximation of the critical size through an extrapolation from the macroscopic to the microscopic scales. Nanoindentation tests confirm this experimental value. According to the grain size compared to the indent size, it can reasonably be said that the mode of damage is deformation-induced intragranular microfracture. This technique also enables to perform cyclic indentations to examine calcite fatigue resistance. Repeated loadings with a nanoindenter on CaCO3 polycrystalline samples produce cumulative mechanical damage. It is also shown that the transition between ductile and brittle behaviour depends on the number of indentation cycles. The ductile domain can be reduced when the material is exposed to a fatigue process.
dc.descriptionJournal of European Ceramic Society accepté pour publication (2008) sous-presse
dc.identifierhttps://arxiv.org/abs/0808.0329
dc.identifierhttp://arxiv.org/abs/0808.0329
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/166331
dc.subjectMaterials Science
dc.titleUse of a nanoindentation fatigue test to characterize the ductile-brittle transition
dc.typetext

Files

Collections

arXiv