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Instrumentovaný indentační test v nano- a mikroměřítku
Buršíková, V. ; Buršík, Jiří ; Bláhová, O. ; Dušek, J. ; Navrátil, V.
Several materials were chosen to span a wide range of hardness and structure,including pure copper,nickel,titanium,cadmium,zinc and silver.Nanoindentation hardness and microhardness values in wide interval of loads,measured by DSI method and classical Vickers microhardness method were compared in view of indentation Size Effect.
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Nanoindentation and theoretical strength in metals and intermetallics
Šob, Mojmír ; Legut, Dominik ; Friák, Martin ; Fiala, J. ; Vitek, V. ; Hafner, J.
The present contribution gives an account of applications of quantum-mechanical (first-principles) electronic structure calculations to the problem of theoretical strength in metals and intermetallics. First, we briefly describe the way of simulating the tensile test and the electronic structure calculational method. Then we discuss the theoretical strength values in a number of elemental metals and intermetallics and compare them with available experimental data, both from measurements on whiskers and from nanoindentation experiments.
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