Results 11 to 20 of about 527,812 (346)

Strain rate dependency of dislocation plasticity [PDF]

open access: yesNature Communications, 2020
Dislocation glide is a general deformation mode, governing the strength of metals. Via discrete dislocation dynamics and molecular dynamics simulations, we investigate the strain rate and dislocation density dependence of the strength of bulk copper and ...
H. Fan   +4 more
semanticscholar   +1 more source

Atomistic simulations of dislocation mobility in refractory high-entropy alloys and the effect of chemical short-range order

open access: yesNature Communications, 2021
Refractory high-entropy alloys (RHEAs) are designed for high elevated-temperature strength, with both edge and screw dislocations playing an important role for plastic deformation.
Sheng Yin   +8 more
semanticscholar   +1 more source

Crystal Plasticity Simulation of Magnesium and Its Alloys: A Review of Recent Advances

open access: yesCrystals, 2021
Slip and extension twinning are the dominant deformation mechanisms in Magnesium (Mg) and its alloys. Crystal plasticity is a powerful tool to study these deformation mechanisms.
Mohammadreza Yaghoobi   +2 more
doaj   +1 more source

Strengthening in multi-principal element alloys with local-chemical-order roughened dislocation pathways [PDF]

open access: yesNature Communications, 2019
High-entropy and medium-entropy alloys are presumed to have a configurational entropy as high as that of an ideally mixed solid solution (SS) of multiple elements in near-equal proportions.
Qing-Jie Li, H. Sheng, E. Ma
semanticscholar   +1 more source

Extrusion and Dislocation in Titanium Middle Ear Prostheses: A Literature Review

open access: yesBrain Sciences, 2023
Titanium middle ear (ME) prostheses are widely used in surgical practice due to their acoustic properties. However, they present a significant drawback shared by all synthetic materials currently in use for ME reconstruction: they can be rejected by the ...
Pietro Canzi   +11 more
doaj   +1 more source

Dislocation-toughened ceramics.

open access: yesMaterials Horizons, 2021
Functional and structural ceramics have become irreplaceable in countless high-tech applications. However, their inherent brittleness tremendously limits the application range and, despite extensive research efforts, particularly short cracks are hard to
L. Porz   +15 more
semanticscholar   +1 more source

A comparison of different surgical approaches to hemiarthroplasty for the femoral neck fractures: A meta-analysis

open access: yesFrontiers in Surgery, 2023
There are three traditional surgical approaches to hemiarthroplasty (HA) for femoral neck fractures, respectively, the anterior approach (AA), the lateral approach (LA) and the posterior approach (PA). However, the optimum approach is still controversial,
Liang Shuai   +11 more
doaj   +1 more source

The origin of jerky dislocation motion in high-entropy alloys [PDF]

open access: yesNature Communications, 2020
Dislocations in single-phase concentrated random alloys, including high-entropy alloys (HEAs), repeatedly encounter pinning during glide, resulting in jerky dislocation motion.
D. Utt   +7 more
semanticscholar   +1 more source

Dislocation and fracture-dislocation of the hip [PDF]

open access: yesThe Journal of Bone and Joint Surgery. British volume, 1991
Of 54 patients with posterior dislocations of the hip of type I and type II (Stewart and Milford 1954), 47 were followed for a mean period of 6.7 years (2 to 11). Of these, 23 had dislocation with minimal lesions of the acetabulum (type I) and 24 had an avulsed dorsocranial fragment (type II). All were reduced by closed methods within six hours.
G Fischer, RA Jaskulka, G Fenzl
openaire   +3 more sources

Utopian Places/ Spaces in Selected Bongani Sibanda’s Short Stories

open access: yesMetacritic Journal for Comparative Studies and Theory, 2020
The dire socio-political and economic landscape in Zimbabwe has forced many Zimbabweans, young and old, to relocate to various and different diasporic locations.
Nkululeko Sibanda
doaj   +1 more source

Home - About - Disclaimer - Privacy