Results 11 to 20 of about 12,577,788 (269)

The Indentation Size Effect (ISE) of Metals

open access: yesCrystals, 2022
The literature regarding the Reverse Indentation Size Effect (RISE) is scarce, the occurrence of which is assumed for plastic materials, including metals.
Jozef Petrík   +4 more
doaj   +4 more sources

A comparative study of indentation size effect models for different materials [PDF]

open access: yesScientific Reports
The phenomenon of indentation size effect (ISE) has received great attention in aerospace, nuclear power, microelectronics and medicine. Although researchers have proposed various ISE models, these models often involve different form and number of ...
Peina Wang, Yu Gao, Peihuan Wang
doaj   +4 more sources

Indentation size effect and hardness of materials [PDF]

open access: yesE3S Web of Conferences, 2023
In recent decades, the Indentation Size Effect (ISE), which manifests itself as a change in fixed hardness depending on indentation conditions, has become one of the most urgent problems of modern materials science.
Udalov A.V., Udalov A.A.
doaj   +2 more sources

On the origins and mechanisms of the indentation size effect

open access: yesZeitschrift für Metallkunde, 2003
It is often observed that the hardness of a ceramic or metal changes as the size of the indentation is reduced, the socalled indentation size effect. There are a number of explanations for the observed behaviour including the effects of sample preparation and test method, the increasing perfection of materials as the volume is reduced and the scale of ...
Bull SJ
core   +7 more sources

Effect of temperature and strain rate on indentation size effect at shallow indentation depths

open access: yesMaterials & Design
This study investigates the indentation size effect in a bcc silicon iron single-crystal tested at different temperatures and strain rates. The classical Nix-Gao model based on strain gradient plasticity and geometrically necessary dislocations starts to
Petr Haušild   +3 more
doaj   +2 more sources

On the novel finding of two modified-Nix-Gao models for indentation size effect [PDF]

open access: yesScientific Reports
Existing modified-Nix-Gao models have been developed to accurately describe the descending indentation size effect (ISE). This raises the question of whether the modified-Nix-Gao models can describe other types of ISE. In this paper, because Nix-Gao-Feng
Peina Wang, Qi Pan
doaj   +2 more sources

An improved NG-F model for capturing the three types of indentation size effect [PDF]

open access: yesScientific Reports
Experimental studies indicate that three types of ISE are observed. However, developing a model to capture three types of ISE is one challenging task in materials science.
Peina Wang, Yu Gao, Peihuan Wang
doaj   +2 more sources

Temperature dependence of the indentation size effect [PDF]

open access: yesJournal of Materials Research, 2010
The influence of temperature on the indentation size effect is explored experimentally. Copper is indented on a custom-built high-temperature nanoindenter at temperatures between ambient and 200 °C, in an inert atmosphere that precludes oxidation.
Franke, Oliver   +2 more
openaire   +4 more sources

Micrometre-scale plasticity size effects in metals and ceramics: theory and experiment. [PDF]

open access: yes, 2009
PhDThis thesis comprises studies of size effects in the plasticity of metals and ceramics at length scales of the order of micrometres and includes both experimental work and theoretical development. Experimental results are presented for foil flexure
Zhu, Tingting
core   +4 more sources

Cytotoxicity Assessment and Indentation Size Effect of Low-Cost Experimental Implant Alloys [PDF]

open access: yesACS Materials Au
Nompumelelo V. Nkosi   +6 more
doaj   +2 more sources

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