Results 101 to 110 of about 5,304,813 (404)

Multi-scale Modeling of the Impact Response of a Strain Rate Sensitive High-Manganese Austenitic Steel

Frontiers in Materials, 2014
A multi-scale modeling approach was applied to predict the impact response of a strain rate sensitive high-manganese austenitic steel. The roles of texture, geometry and strain rate sensitivity were successfully taken into account all at once by coupling
Orkun eÖnal, Cemre eOzmenci, Demircan eCanadinc   +2 more
doaj   +1 more source

Intermittent dislocation density fluctuations in crystal plasticity from a phase-field crystal model

, 2014
Plastic deformation mediated by collective dislocation dynamics is investigated in the two-dimensional phase-field crystal model of sheared single crystals.
Angheluta, Luiza, Goldenfeld, Nigel, Mathiesen, Joachim, Tarp, Jens M.   +3 more
core   +1 more source

Investigation of Solid‐Solution Phase Formation in AlCuNiSi Medium Entropy Alloys and its Effect on Microstructural, Thermal, and Microhardness Properties

Advanced Engineering Materials, EarlyView.
This study focuses on synthesizing equiatomic AlCuNiSi medium‐entropy alloys using mechanical alloying for advanced industrial applications. Continuous milling leads to grain refinement and the formation of stable BCC/FCC solid‐solution phases, resulting in enhanced mechanical properties. A unique Si‐rich solid‐solution phase is observed, which did not
Mustafa Okumuş, Mehmet Emin Demir, Celal Onat   +2 more
wiley   +1 more source

Phase-field framework with constraints and its applications to ductile fracture in polycrystals and fatigue

npj Computational Materials, 2022
Modeling of ductile fracture in polycrystalline structures is challenging, since it requires integrated modeling of cracks, crystal plasticity, and grains.
Fei Xue, Tian-Le Cheng, Yinkai Lei, You-Hai Wen   +3 more
doaj   +1 more source

Static Recrystallization Simulation of Interstitial Free‐Steel by Coupling Multi‐Phase‐Field and Crystal Plasticity Model Considering Dislocation Density Distribution

Advanced Engineering Materials, EarlyView.
This study models static recrystallization in interstitial free‐steel using coupled crystal plasticity and phase‐field simulations. The method directly links heterogeneous dislocation density to nucleation site prediction, eliminating reliance on empirical assumptions.
Alireza Rezvani, Ramin Ebrahimi, Ebad Bagherpour   +2 more
wiley   +1 more source

Effects of pore diameter and B2–NiTi crystal on plasticity of amorphous Ni–Ti alloy based on molecular dynamics simulation

Journal of Materials Research and Technology, 2023
The poor plasticity of metallic glasses (MGs) limits its applicability as engineering materials. Therefore, it is particularly important to find ways to improve the plasticity of metallic glasses.
Yu Zhou, Yongchao Liang, Lili Zhou, Zean Tian, Qian Chen, Yunfei Mo   +5 more
doaj  

A new constitutive model for tetragonal energetic single crystals [PDF]

arXiv, 2021
In this paper is presented a new single crystal plasticity model with yielding accounting for the tetragonal symmetry of molecular energetic crystals. This new tetragonal yield criterion has been developed using representation theorems for anisotropic tensor functions.
arxiv  

Tribology of ZrC Coatings and Spherical Tips Acquired with Extraordinarily Stiff, Metal Atomic Force Microscopy Probes

Advanced Engineering Materials, EarlyView.
In this research, ZrC coatings are evaluated against various counterprobes at the microscale using novel super‐stiff atomic force microscopy cantilevers. The chemical composition of the coating is shown to be an important factor influencing coating hardness and Young's modulus, while surface roughness, counterprobe hardness, and surface energy are the ...
Piotr Jenczyk, Marcin Michałowski, Bogdan Warcholiński, Michał Milczarek, Adam Gilewicz   +4 more
wiley   +1 more source

Influence of a Hydrostatical High-Pressure on Plasticity of Solids

Фізика і хімія твердого тіла, 2016
On the two-dimensional model of the crystal it was shown that the crystal lattice transform from stable to unstable under the influence of hydrostatical high pressure. As a result of such transformation is intensity the processes of plastic deformation.
L. Kozak, O. Kozak
doaj   +1 more source

Profilometry‐Based Indentation Plastometry Testing of Tungsten at High Temperature

Advanced Engineering Materials, EarlyView.
Profilometry‐based indentation plastometry (PIP) allows extraction of stress‐strain curves from indent profiles. Tungsten is of industrial interest but is brittle at room temperature. It does plastically deform at higher temperatures. Excellent agreement is obtained between the two techniques in this regime, but PIP also gives plasticity ...
James Rees Miller, Philip John McKeown, Hillary Qiu, Trevor William Clyne   +3 more
wiley   +1 more source