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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

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

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

Creep Behavior of Near α High Temperature Ti-6.6Al-4.6Sn-4.6Zr-0.9Nb-1.0Mo-0.32Si Alloy

open access: yesFrontiers in Materials, 2021
This study focuses on the microstructure characteristics and tensile and creep properties of a near α high temperature Ti-6.6Al-4.6Sn-4.6Zr-0.9Nb-1.0Mo-0.32Si alloy. Microstructure characteristics were quantitatively investigated using optical microscopy,
Dongye Yang   +4 more
doaj   +1 more source

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

Simultaneous enhancement of strength and ductility with nano dispersoids in nano and ultrafine grain metals: a brief review

open access: yesReviews on Advanced Materials Science, 2020
Grain refinement is the most universal and effective method of strengthening metallic materials, which is known as the “Hall-Petch” relationship. However, when grain size is refined to sub-micro regime (Ultrafine Grain, UFG) or even nano regime (Nano ...
Hu Yusheng   +7 more
doaj   +1 more source

Revisiting the Application of Field Dislocation and Disclination Mechanics to Grain Boundaries

open access: yesMetals, 2020
We review the mechanical theory of dislocation and disclination density fields and its application to grain boundary modeling. The theory accounts for the incompatibility of the elastic strain and curvature tensors due to the presence of dislocations and
Claude Fressengeas, Vincent Taupin
doaj   +1 more source

Strain Rate of Metal Deformation in the Machining Process from a Fluid Flow Perspective

open access: yesApplied Sciences, 2020
Metal cutting speeds are getting faster with the development of high-speed cutting technology, and with the increase in cutting speed, the strain rate will become larger, which makes the study of the metal cutting process more inconvenient.
Keguo Zhang   +3 more
doaj   +1 more source

Perilunate Dislocation

open access: yesJournal of Education and Teaching in Emergency Medicine, 2016
History of present illness: A 25-year-old female presented to the emergency department with left wrist pain following a fall off a skateboard. The patient fell on her outstretched left wrist with the wrist dorsiflexed and reported immediate sharp pain ...
John Jiao, Shannon Toohey
doaj   +1 more source

Effect of solute atoms on dislocation motion in Mg: an electronic structure perspective. [PDF]

open access: yes, 2015
Solution strengthening is a well-known approach to tailoring the mechanical properties of structural alloys. Ultimately, the properties of the dislocation/solute interaction are rooted in the electronic structure of the alloy. Accordingly, we compute the
Chrzan, DC, Tsuru, T
core   +2 more sources

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