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Model for nano-indentation creep
Luleå tekniska universitet.
Luleå tekniska universitet.
1993 (English)In: Acta Metallurgica et Materialia, ISSN 0956-7151, Vol. 41, no 10, p. 3065-3069Article in journal (Refereed) Published
Abstract [en]

A new model is developed to describe that stage of nano-intentation creep prior to `pop-in', i.e. when the indentation load induces purely elastic stresses within the sample. Expressions for the stress fields due to a conical indenter are derived and the resulting chemical potential and diffusion fluxes established. The considerations lead to a creep rate equation which is found to fit well with existing experimental data on tungsten. The model is hence used to predict nano-indentation creep rates at various temperatures. It is found, for example, that at a temperature as low as 100 °C, the indentation creep rate of tungsten can be considerable

Place, publisher, year, edition, pages
1993. Vol. 41, no 10, p. 3065-3069
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-6884DOI: 10.1016/0956-7151(93)90119-DISI: A1993LV72400026Scopus ID: 2-s2.0-0027675550Local ID: 535d5670-f3f3-11db-ac9f-000ea68e967bOAI: oai:DiVA.org:ltu-6884DiVA, id: diva2:979770
Note
Godkänd; 1993; 20070426 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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