Publikace detail

Determination of Mechanical Properties by Instrumented Indentation

Autoři: Menčík Jaroslav

Rok: 2006

Druh publikace: článek v odborném periodiku

Název zdroje: Meccanica (on-line)

Název nakladatele: Springer

Místo vydání: Dordrecht

Strana od-do: 19 - 29

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Určování mechanických vlastností nanoindentatcí	V článku je vysvětlen princip stanovení mechanických vlastností různých materiálů nanoindentací, tj. z hodnot zatížení a dráhy indentoru, měřených v průběhu zatěžování a odlehčování.	mechanické vlastnosti, měření, indentace, nanoindentace, tvrdost, modul pružnosti
eng	Determination of Mechanical Properties by Instrumented Indentation	The paper reviews the current state of the depth-sensing indentation (sometimes called nanoindentation), where the information on material behaviour and properties is obtained from the indenter load and depth, measured continuously during loading and unloading. It is shown how the contact parameters and principal characteristics are determined using pointed or spherical indenters. Indentation tests can be used for the measurement of hardness and elastic modulus, and also of the yield stress and for the construction of stress ? strain diagrams, for the determination of the work of indentation and its components. Most devices use monotonic loading and unloading, but some also enable measurement under a small harmonic signal added to the basic monotonously increasing load. This makes possible continuous measurement of contact stiffness and the study of dynamic properties and the determination of properties of coatings. One section is devoted to the measurement on viscoelastic-plastic materials, where the delayed deforming must be considered during the measurement as well as in data evaluation. Instrumented indentation can also be used for the study of creep under high temperatures. The paper also discusses the errors arising in depth-sensing measurements and informs briefly about some other possibilities of the method and about the mostly used devices.	measurement, indentation, elastic modulus, hardness, nanoindentation, mechanical properties

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