Results 31 to 40 of about 117,465 (216)

Ductile B2 Intermetallics-Driven Strength-Ductility Synergy in Heterolaminated Multi-Principal Element Alloys. [PDF]

open access: yesAdv Sci (Weinh)
Intrinsic phase toughening transforms a brittle B2 intermetallic into a plastically deformable, load‐bearing phase, while a heterogeneous laminated architecture suppresses strain localization and interface cracking. The synergy between ductile intermetallics and mesoscale heterogeneity establishes a general design strategy for breaking the long ...
Yang L   +9 more
europepmc   +2 more sources

Comparison of the Dislocation Structure of a CrMnN and a CrNi Austenite after Cyclic Deformation

open access: yesMetals, 2019
In the literature, the effects of nitrogen on the strength of austenitic stainless steels as well as on cold deformation are well documented. However, the effect of N on fatigue behaviour is still an open issue, especially when comparing the two alloying
Rainer Fluch   +5 more
doaj   +1 more source

Overcoming the strength-ductility trade-off in refractory medium-entropy alloys via controlled B2 ordering

open access: yesMaterials Research Letters, 2022
Herein, we showed that controlled additions of Al, which provided a certain degree of B2 ordering, resulted in a ∼ 37%-enhancement of both yield strength and uniform elongation in Alx(NbTiZr)100-x (x = 0; 2.5; 5; 7.5 at.%) refractory medium-entropy ...
N. Yurchenko   +4 more
doaj   +1 more source

Dislocation creep behavior of CoCrFeMnNi high entropy alloy at intermediate temperatures

open access: yesMaterials Research Letters, 2018
Dislocation creep behaviors of CoCrFeMnNi were investigated at intermediate temperatures. Shape of creep curves, stress exponents and the activation energies at high stresses (>40 MPa) were distinctly different from those at low stresses, suggesting the ...
You Bin Kang   +3 more
doaj   +1 more source

A modified surgical technique for Descemet's stripping automated endothelial keratoplasty (DSAEK) in altered or abnormal anatomy

open access: yesAmerican Journal of Ophthalmology Case Reports, 2019
Purpose: This paper describes a modified technique for the Descemet's Stripping Automated Endothelial Keratopasty (DSAEK) surgery in eyes with abnormal or altered anatomy. Certain anatomic abnormalities increase the level of surgical complexity, and lead
Ellen H. Koo
doaj   +1 more source

The Role of Glide during Creep of Copper at Low Temperatures

open access: yesMetals, 2018
Copper canister will be used in Scandinavia for final storage of spent nuclear fuel. The copper will be exposed to temperatures of up to 100 °C. The creep mechanism at near ambient temperatures has been assumed to be glide of dislocations, but this ...
Arash Hosseinzadeh Delandar   +2 more
doaj   +1 more source

Radiation Enhanced Dislocation Glide and Rapid Degradation

open access: yes, 1990
Conspicuous enhancement of dislocation glides under minority carrier injection is reviewed. Systematic investigation of dislocation glide velocity under electron-beam irradiation in various semiconducting crystals showed that the radiation enhanced ...
Y. Yamashita   +3 more
core   +1 more source

Glide and mixed climb dislocation velocity in γ-TiAl investigated by in-situ transmission electron microscopy

open access: yes, 2023
International audienceDislocation velocities at high temperatures in metallic systems are believed in literature to be different for glide and climb, the values being bigger in case of glide.
Galy, Benjamin   +7 more
core   +1 more source

Critical temperatures for ductile to brittle transition and athermal strength in refractory metals

open access: yesJournal of Materials Research and Technology
The plasticity of body-centered cubic metals exhibits a strong temperature dependence, governing both their yield behavior and their transition from brittle to ductile fracture.
Morgan R. Jones   +2 more
doaj   +1 more source

German glide formation functionally viewed [PDF]

open access: yes, 2009
Glide formation, a process whereby an underlying high front vowel is realized as a palatal glide, is shown to occur only in unstressed prevocalic position in German, and to be blocked by specific surface restrictions such as *ji and *“j.
Hamann, Silke
core  

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