Results 41 to 50 of about 5,655,416 (266)

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

, 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

Characterization of Geometrically Necessary Dislocation Content with EBSD-Based Continuum Dislocation Microscopy [PDF]

, 2015
Modeling of plasticity is often hampered by the difficulty in accurately characterizing dislocationdensity on the microscale for real samples. It is particularly difficult to resolve measureddislocation content onto individual dislocation systems at the ...
Ruggles, Tim
core  

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

Observation of the formation and sharpening of geometrically necessary boundaries

Materials Research Letters
We present in-situ visualisation of incidental dislocation boundaries (IDBs) and geometrically necessary boundaries (GNBs) in single-crystal aluminium under tensile load along [111].
Adam André William Cretton, Albert Zelenika, Felix Frankus, Can Yıldırım, Carsten Detlefs, Flemming Bjerg Grumsen, Grethe Winther, Henning Friis Poulsen   +7 more
doaj   +1 more source

Hardness-Depth Relationship with Temperature Effect for Single Crystals—A Theoretical Analysis

Crystals, 2020
In this paper, a mechanistic model is developed to address the effect of temperature on the hardness-depth relationship of single crystals. Two fundamental hardening mechanisms are considered in the hardness model, including the temperature dependent ...
Hao Liu, Long Yu, Xiazi Xiao
doaj   +1 more source

Geometrically Necessary Dislocation Analysis of Deformation Mechanism for Magnesium under Fatigue Loading at 0 °C

Crystals, 2023
This study focused on the analysis of geometrically necessary dislocation (GND) densities for five selected fine-grained magnesium samples. Among the samples, three were tested under different fatigue-loading conditions at 0 °C, one experienced quasi ...
Qizhen Li
doaj   +1 more source

Investigation of the shear response and geometrically necessary dislocation densities in shear localization in high-purity titanium [PDF]

International Journal of Plasticity, 2017
Abstract The influence of microstructural anisotropy on shear response of high-purity titanium was studied using the compact forced-simple-shear specimen (CFSS) loaded under quasi-static loading conditions. Post-mortem characterization reveals significant difference in shear response of different directions in the same material due to material ...
Chaoyi Zhu, Veronica Livescu, Tyler Harrington, Olivia Dippo, George T. Gray, Kenneth S. Vecchio   +5 more
openaire   +1 more source

DigiChrom: A Domain Ontology for Semantic Representation of Trivalent Chromium Platings and Its Large Language Model‐Based Alignment With Multiple Mid‐Level Ontologies

Advanced Engineering Materials, EarlyView.
Digitalizing electroplating requires both domain knowledge and interoperability. This work introduces PlatOn, a domain ontology for trivalent chromium plating and coating characterization, and a hybrid pipeline that aligns it to a mid‐level reference ontology by combining eight similarity metrics with language model reasoning. Expert‐validated mappings
Janik Harter, Elena Garcia Trelles, Christoph Schweizer, Thomas Seifert, Christoph Baumer, Mahmoud Elkady, Katja Feige, Daniel Grimme, Edgar Hoffmann, Andreas Waibel, Anke Walter   +10 more
wiley   +1 more source

High‐Resolution Corrosion Fingerprinting of Alloy Libraries via Microdroplet Spectroelectrochemistry

Advanced Engineering Materials, EarlyView.
Ionic‐liquid microdroplet spectroelectrochemistry enables stable, localized electrochemical measurements over extended timescales. By coupling impedance spectroscopy, wetting analysis, finite‐element simulations, and operando Raman spectroscopy, it disentangles geometrical and electrochemical effects, opening new opportunities for rapid corrosion ...
Ekaterina Kurchavova, Oumaïma Gharbi, Mireille Turmine, Vincent Vivier   +3 more
wiley   +1 more source

Effect of prestrain on the microstructure and corrosion resistance of 840 nickel-based alloy

Journal of Materials Research and Technology
The microstructure, grain size, dislocation density, and crystal texture of a material vary owing to prestraining due to external forces. These changes directly affect the corrosion behavior of the material, thereby affecting the structural integrity and
Ruirui Wu, Zhuoyu Han, Bo Gao, Pengpeng Wu, Yuanhua Shuang, Huiqin Chen, Baosheng Liu, Zhixiong Zhang   +7 more
doaj   +1 more source