Results 21 to 30 of about 12,903,177 (147)

Exploitation of static and dynamic methods for the analysis of the mechanical nanoproperties of polymethylmetacrylate by indentation

open access: yesFracture and Structural Integrity, 2021
Elaborating an instrumented nanoindentation is to exercise non-destructive tests to be applied to volumes of polymethylmetacrylate (PMMA) materials in miniature. This work focuses on factors that explain the trends variation of mechanical properties like
Benaissa Soufiane   +6 more
doaj   +1 more source

Strain Hardening Exponent Prediction by Indentation Size Effect (ISE) of Vickers Hardness

open access: yes, 2021
Another ways to prediction the force-displacement curve of indentation (P-h curves) from constitutive material properties has been created and assessed for Vickers Indentation. This gave a helpful apparatus to assess the possibility of utilizing hardness
et. al., I.N. Budiarsa,
core   +1 more source

Indentation size effects of ferritic/martensitic steels: A comparative experimental and modelling study

open access: yesMaterials & Design, 2018
The paper presents a comparative study of different nanoindentation methods as applied to the ferritic/martensitic steels T91 and Eurofer97, here investigated in the non-irradiated reference state, but envisaged as structural materials for nuclear ...
Ana Ruiz-Moreno, Peter Hähner
doaj   +1 more source

Nanoindentation Properties of 18CrNiMo7-6 Steel after Carburizing and Quenching Determined by Continuous Stiffness Measurement Method

open access: yesMetals, 2020
In this work, the nanomechanical properties involving the indentation size effect (ISE) and yield strength of a surface-modified layer of 18CrNiMo7-6 steel after case hardening were investigated via nanoindentation experiments.
Guiyuan Zhou   +4 more
doaj   +1 more source

Microhardness model based on geometrically necessary dislocations for heterogeneous material

open access: yesJournal of Materials Research and Technology, 2021
Lamellar cast irons are known as heterogeneous materials. Their overall hardness is determined by the microhardness of their microstructure contents.
Mohammed Mendas   +3 more
doaj   +1 more source

The indentation size effect of single-crystalline tungsten revisited [PDF]

open access: yes, 2021
In this study, we have investigated the indentation size effect (ISE) of single crystalline tungsten with low defect density. As expected, the hardness shows a pronounced increase with decreasing indentation depth as well as a strong strain rate ...
Weygand, Sabine M.   +3 more
core   +1 more source

An investigation of nanoindentation tests on the single crystal copper thin film via an AFM and MD simulation [PDF]

open access: yes, 2007
Nanoindentation tests performed in an atomic force microscope have been utilized to directly measure the mechanical properties of single crystal metal thin films fabricated by the vacuum vapor deposition technique. Nanoindentation tests were conducted at
Liang, Y, Cheng, K, Huo, D
core   +6 more sources

Effect of annealing ambient conditions on crack formation mechanisms of bulk Bi-2212 ceramic systems

open access: yesJournal of Asian Ceramic Societies, 2021
This study paves way to examine the influence of different annealing conditions (temperature range of 830-850°C and duration intervals 24-48 h) on the fundamental mechanical performance and characteristic quantities of polycrystalline Bi2.1Sr2.0Ca1.1Cu2 ...
U. Erdem   +5 more
doaj   +1 more source

A gradient elasticity approach to the indentation size effect at very small depths

open access: yesJournal of the Mechanical Behavior of Materials, 2011
Over the past two decades, the indentation size effect (ISE) has been studied extensively by several authors. A common point among all these studies has been the premise that during the indentation process sufficient plastic deformation is developed so ...
Mokios George P., Aifantis Elias C.
doaj   +1 more source

The Relationship between Polishing Method and ISE Effect

open access: yesCrystals, 2023
The aim of the submitted work is to study the relationship between the method of polishing the metallurgical surface and the indentation size effect (ISE). The material of the sample was annealed 99.5% aluminum.
Jozef Petrík   +6 more
doaj   +1 more source

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