Results 21 to 30 of about 4,276 (180)

Strain-gradient effect on the crack tip dislocations density

open access: yesFracture and Structural Integrity, 2020
In this study, the influence of a material’s plastic properties on the crack tip fields and dislocation density behavior is analytically and numerically analyzed using the conventional mechanism-based strain-gradient plasticity (CMSGP) theory established
Valery Shlyannikov   +2 more
doaj   +3 more sources

OptiArch: optimization of plant architecture in sunflower (Helianthus annuus) for yield increase [PDF]

open access: yes, 2022
A sunflower association panel was evaluated and 64 genotypes with specific growth types were selected. Results of performance tests showed hybrid candidates that can deliver a higher yield by growing with increased plant density. Segregation analyses for
Sprycha, Yves (gnd: 1300022817)
core   +1 more source

Lattice strains at cracks in single crystal titanium:Elastic distortion and GND contributions [PDF]

open access: yes, 2015
There is evidence from diffraction experiments that significant peak broadening is measured local to crack tips and this has been attributed to the development of geometrically necessary dislocations (GNDs) which are retained upon unloading.
Dunne, F. P E   +3 more
core   +1 more source

Zusammenhänge zwischen Knochenfestigkeit, Knochendichte und Schraubeneindrehmoment an Radius und Tibia: Ergebnisse einer Untersuchung an Körperspendern [PDF]

open access: yes, 2023
Die Dissertation von Moritz Lukas Königer befasst sich mit der Korrelation von Knochendichte, ermittelt mittels peripherer, quantitativer Computertomographie (pQCT), der Referenzpunkt-Mikroindentation (RMI) sowie des aufgebrachten Drehmoments beim ...
Königer, Moritz Lukas (gnd: 1376181932)
core   +1 more source

In Situ TEM Observation of Cooperative Grain Rotations and the Bauschinger Effect in Nanocrystalline Palladium

open access: yesNanomaterials, 2021
We report on cooperative grain rotation accompanied by a strong Bauschinger effect in nanocrystalline (nc) palladium thin film. A thin film of nc Pd was subjected to cyclic loading–unloading using in situ TEM nanomechanics, and the evolving ...
Ankush Kashiwar   +2 more
doaj   +1 more source

Zur Dichte des Standardmeerwassers [PDF]

open access: yes, 2019
In der Ozeanografie wird die Meerwasserdichte mit Zustandsgleichungen bestimmt, um Tiefseeströmungen zu simulieren. Die Standardzustandsgleichungen TEOS‑10 und EOS-80 beruhen auf 40 Jahre alten Dichtemessungen an Standardmeerwasser, deren ...
Schmidt, Hannes (gnd: 1203830564)
core   +1 more source

Gradients of Strain to Increase Strength and Ductility of Magnesium Alloys

open access: yesMetals, 2019
A strain gradient was produced in an AZ31B magnesium alloy through a plastic deformation of pure torsion at a torsional speed of π/2 per second. Compared with the base material and with the alloy processed by conventional severe plastic deformation,
Yao Liu, Songlin Cai
doaj   +1 more source

Improving Structural Stability and Thermal Stability of Copper Alloy by Introducing Completely Coherent Ceramic Dispersoids

open access: yesMetals, 2023
When ceramic particles are incoherent with copper matrices, or when large coherent strains exist due to the differences between their crystal structure and lattice parameters in traditional dispersion-strengthened copper alloys, the strengthening effect ...
Yilin Guo   +6 more
doaj   +1 more source

Synergistic effect of Al3(Er, Zr) precipitation and hot extrusion on the microstructural evolution of a novel Al–Mg–Si–Er–Zr alloy

open access: yesJournal of Materials Research and Technology, 2023
Isothermal hot compression experiments of homogenized Al–Mg–Si–Er–Zr alloy were conducted at temperatures ranging from 350 to 500 °C and strain rates of 0.01–10 s−1 on a Gleeble-3500 thermal simulation tester.
Meilin Wang   +10 more
doaj   +1 more source

Ab-initio-Berechnung von Transporteigenschaften von warmer dichter Materie [PDF]

open access: yes, 2021
Diese kumulative Habilitationsschrift berichtet über aktuelle Fortschritte auf dem Gebiet der Berechnung von Transporteigenschaften von warmer dichter Materie mithilfe von Dichtefunktionaltheorie und Molekulardynamiksimulationen. Nach einer Einführung in
French, Martin (gnd: 143184482)
core   +1 more source

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