Results 1 to 10 of about 3,830 (122)

Using local GND density to study SCC initiation [PDF]

open access: yesUltramicroscopy, 2020
36 pages, 19 ...
Phani Karamched   +2 more
exaly   +5 more sources

A crystal plasticity investigation of slip system interaction, GND density and stored energy in non-proportional fatigue in Nickel-based superalloy

open access: yesInternational Journal of Fatigue, 2020
Abstract A dislocation and gradient-based crystal plasticity finite element study of fatigue has been carried out for nickel-based superalloy RR1000 in order to investigate detrimental non-proportional effects on fatigue life. Six differing multiaxial loading cycles including both proportional and non-proportional paths have been addressed and a ...
Fionn P E Dunne, YILUN Xu
exaly   +3 more sources

Effects of Strain Rate on the GND Characteristics of Deformed Polycrystalline Pure Copper

open access: yesMetals
Geometrically necessary dislocations (GNDs) play a pivotal role in polycrystalline plastic deformation, with their characteristics notably affected by strain rate and other factors, but the underlying mechanisms are not well understood yet.
Yidan Ma   +5 more
doaj   +3 more sources

Dislocation and disclination densities in experimentally deformed polycrystalline olivine [PDF]

open access: yesEuropean Journal of Mineralogy, 2023
We report a comprehensive data set characterizing and quantifying the geometrically necessary dislocation (GND) density in the crystallographic frame (ραc) and disclination density (ρθ) in fine-grained polycrystalline olivine deformed in uniaxial ...
S. Demouchy   +9 more
doaj   +1 more source

Strain-Hardening Prediction of DP600 Steel Considering the Heterogeneous Deformation Between Ferrite and Martensite [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
Dual-phase steels have received extensive attention in autobody frame manufacturing due to the resulting characteristics of an interesting combination of ductile ferrite and hard martensite.
Gou Rui-Bin   +4 more
doaj   +1 more source

Ultrasound-guided needle decompression and steroid injection for calcific tendinitis of the shoulder: risk factors for repeat procedures and outcome analysis [PDF]

open access: yesClinics in Shoulder and Elbow, 2021
Background Although ultrasound-guided needle decompression (US-GND) can treat calcific tendinitis of the shoulder effectively, repeat procedures might be required for unresolved symptoms.
Su Cheol Kim   +4 more
doaj   +1 more source

A DFT Study of Phosphate Ion Adsorption on Graphene Nanodots: Implications for Sensing

open access: yesSensors, 2023
The optical properties of graphene nanodots (GND) and their interaction with phosphate ions have been investigated to explore their potential for optical sensing applications.
Ivan Shtepliuk
doaj   +1 more source

Characterization of Dislocation Structure in a Nb-bearing Austenitic Stainless Steel After Low Cycle Fatigue via TEM and EBSD

open access: yesMaterials Research, 2021
In this paper, the relationship between Kernel average misorientation (KAM), geometrically necessary dislocation (GND) density and dislocation structures of Nb-bearing austenitic stainless steel under low cycle fatigue (LCF) was studied at 600°C at the ...
Liangwei Fang   +7 more
doaj   +1 more source

A new approach for determining GND and SSD densities based on indentation size effect: An application to additive-manufactured Hastelloy X

open access: yesJournal of Materials Science & Technology, 2022
Abstract Dislocation plays a crucial role in controlling the strength and plasticity of bulk materials. However, determining the densities of geometrically necessary dislocations (GNDs) and statistically stored dislocations (SSDs) is one of the classical problems in material research for several decades.
Luqing Cui   +6 more
openaire   +2 more sources

Optimization of Probability Density Functions Applicable for Hourly Rainfall

open access: yesAtmosphere, 2023
In order to improve the calculation accuracy of the rainfall probability distribution in related applications, this study aimed to select a theoretical function from applicable functions for three classes of the class-conditional probability density ...
Tieyuan Shen, Yiheng Xiang
doaj   +1 more source

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