Results 41 to 50 of about 7,286,183 (302)

Existence and stability of a screw dislocation under anti-plane deformation [PDF]

, 2014
We formulate a variational model for a geometrically necessary screw dislocation in an anti-plane lattice model at zero temperature. Invariance of the energy functional under lattice symmetries renders the problem non-coercive.
Hudson, Thomas, Ortner, Christoph
core   +1 more source

Line-Profile Analysis Combined with Texture Analysis for Characterizing Dislocation Distribution in Texture Components of Cold-Rolled Copper Sheets

High Temperature Materials and Processes, 2016
We described a newly developed characterization technique that dislocation density could be individually determined for each texture component of plastically deformed metals by combining the line-profile analysis with the texture analysis by using X-ray ...
Satoh Kozue, Sato Shigeo, Yamanaka Kenta, Suzuki Shigeru, Chiba Akihiko, Wagatsuma Kazuaki   +5 more
doaj   +1 more source

Effect of applied magnetic field on wear behaviour of martensitic steel

Journal of Materials Research and Technology, 2019
The effect of applied magnetic field on wear resistance of martensitic steel with different dislocation densities has been investigated. The wear resistance of martensitic steels improved under the applied magnetic field, while the improvement reduced as
Licai Fu, Lingping Zhou
doaj   +1 more source

Consistent determination of geometrically necessary dislocation density from simulations and experiments [PDF]

International journal of plasticity, 2018
The use of Nye's dislocation tensor for calculating the density of geometrically necessary dislocations (GND) is widely adopted in the study of plastically deformed materials.
Suchandrima Das, F. Hofmann, E. Tarleton
semanticscholar   +1 more source

Predicting dislocation density in martensite ab-initio [PDF]

, 2023
The high dislocation density (ρd) in Fe-C and/or Fe-N martensite is known to be one of the main causes of its overall yield strength. Experiments indicate that the dislocation density and, therefore, the yield strength of martensite in low and medium C ...
Maresca, Francesco, Andric, Predrag, Echeverri Restrepo, S.   +2 more
core   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

A discrete dislocation dynamics study aiming at understanding fatigue crack initiation [PDF]

, 2003
We use discrete dislocation dynamics to build a model for fatigue crack initiation in a surface grain. Dislocations are modeled as line singularities in an elastic medium where they can be generated from pre-existing sources, glide or annihilate.
Giessen, Erik van der,, Van der Giessen, E, Brinckmann, Steffen,, Van der Giessen, E; id_orcid, Giessen, Erik van der, Brinckmann, S, Giessen, Erik van der; id_orcid, van der Giessen, E., van der Giessen, E.; id_orcid, Steffen Brinckmann, Erik Van Der Giessen, Brinckmann, S., Brinckmann, Steffen   +12 more
core   +3 more sources

Correlation between sliding bearing wear rate and material characteristics of friction surfaces in heavily loaded construction and road machinery

Проблеми трибології
Based on an investigation of how entropy generation depends on material and tribological characteristics, it was found that the wear rate of a sliding bearing operating under elastic and elastoplastic contact conditions exhibits a nonmonotonic ...
O. Shchukin, O. Orel, A. Kholodov, A. Kravets, S. Fedoriachenko   +4 more
doaj   +1 more source

Structure‐forward targeting of claudins with synthetic binders

FEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

Crack propagation in low dislocation density quantum dot lasers epitaxially grown on Si

APL Materials, 2022
Low threading dislocation density in epitaxial lasers on Si is required for high performance and robust devices for silicon photonic integrated circuits.
Chen Shang, Matthew R. Begley, Daniel S. Gianola, John E. Bowers   +3 more
doaj   +1 more source