Results 21 to 30 of about 273 (152)

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 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

Investigation of indentation size effect (ISE) and micro-mechanical properties of Lu added Bi2Sr2CaCu2Oy ceramic superconductors

open access: yesJournal of Materials Science: Materials in Electronics, 2012
In this study, we investigated the effect of the Lutetium (Lu) addition on microstructure and mechanical properties of the Bi-2212 superconductors annealed at 840 °C for 50 h. The samples were prepared by the widely used conventional solid-state reaction method. For comparison, undoped sample was prepared in the same conditions.
Öztürk, Özgür   +6 more
openaire   +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

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

Classification of tree species and standing dead trees in Boreal forests using UAV‐based RGB, multispectral, and LiDAR point clouds

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
We evaluated single‐ and multi‐sensor UAV approaches for classifying tree species and standing dead trees in boreal forests, focusing on key biodiversity indicators such as European aspen. Using spectral and structural features extracted from RGB, multispectral (MSP), and LiDAR point clouds for 1,205 field‐measured trees, we compared classification ...
Anton Kuzmin   +5 more
wiley   +1 more source

Detection of the indentation-size-effect (ISE) and surface hardening by analysis of the loading curvature C

open access: yesInternational Journal of Solids and Structures, 2016
Abstract Numerous materials are affected by the Indentation-Size-Effect (ISE). Thus, the interpretation of ISE-influenced indentation data plays an important role. This paper presents a method which allows for the characterization of the ISE using the loading curvature C of a single load-displacement curve (P–h curve) from sharp indentation.
F. Pöhl, S. Huth, W. Theisen
openaire   +1 more source

Mechanical Insights Into Polymeric Multilayers Films Using Nanoindentation and the Structural Compliance Method

open access: yesStrain, Volume 62, Issue 2, April 2026.
This study applies nanoindentation to resolve layer‐specific mechanical properties in photovoltaic backsheet multilayer polymers. Structural compliance correction reduces substrate flexure and edge artefacts, enabling reliable hardness and modulus mapping.
P. Christoefl   +6 more
wiley   +1 more source

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