Results 121 to 130 of about 5,304,813 (404)

Size effects and dislocation patterning in two-dimensional bending

, 2006
We perform atomistic Monte Carlo simulations of bending a Lennard-Jones single crystal in two dimensions. Dislocations nucleate only at the free surface as there are no sources in the interior of the sample.
Selinger, Robin L. B., Weingarten, N. Scott   +1 more
core   +2 more sources

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

Finite Element Simulation and Process Analysis for Hot-Forming WE43 Magnesium Alloy Fasteners: Comparison of Crystal Plasticity with Traditional Method

Metals
The WE43 magnesium alloy has gained attention in orthopedic implants due to its biodegradable properties, particularly for fabricating degradable fasteners. However, research on its hot-forming processes remains limited, primarily focusing on macroscopic
Anqi Jiang, Yuanming Huo, Zixin Zhou, Zhenrong Yan, Yue Sun   +4 more
doaj   +1 more source

Unraveling the temperature dependence of the yield strength in single-crystal tungsten using atomistically-informed crystal plasticity calculations

, 2015
We use a physically-based crystal plasticity model to predict the yield strength of body-centered cubic (bcc) tungsten single crystals subjected to uniaxial loading.
Ackermann, Alankar, Ali, Argon, Arieli, Arsenlis, Barton, Basinski, Bodner, Bowden, Brinckmann, Brunner, Brunner, Brünig, Bulatov, Bulatov, Cai, Caillard, Caillard, Caillard, Cereceda, Cereceda, Chang, Chaussidon, Chen, Christensen, Christian, Dao, David Cereceda, Deo, Dezerald, Dezerald, Dierk Raabe, Dorn, Drucker, Duesbery, Duesbery, Duesbery, Dumoulin, Erieau, Escaig, Escaig, Estrin, Fish, Franciosi, Franciosi, Franciosi, Franz Roters, Gilbert, Gordon, Gröger, Gröger, Gröger, Gröger, Gröger, Gupta, Hamelin, Hedworth, Henkelman, Hull, Hutchinson, Hölscher, Hölscher, Ito, J. Manuel Perlado, Jaime Marian, Kalidindi, Kitayama, Klopp, Knezevic, Kocks, Koester, Komanduri, Kuchnicki, Lee, Lee, Li, Lim, Lim, Lim, Lin, Lubliner, Ma, Madec, Marichal, Marichal, Martin Diehl, McDowell, Mecking, Monnet, Monnet, Naamane, Narayanan, Pariseau, Patra, Peeters, Pichl, Plimpton, Prager, Proville, Qin, Queyreau, Queyreau, Raabe, Raabe, Raabe, Raffo, Raphanel, Reina, Romaner, Roters, Roters, Roters, Samolyuk, Scarle, Schmid, Seeger, Seeger, Serenelli, Sheng, Sherwood, Soare, Stainier, Starovoitov, Stephens, Stukowski, Swinburne, Takeuchi, Tang, Taylor, Taylor, Taylor, Taylor, Ventelon, Ventelon, Vitek, Vitek, Weinberger, Weinberger, Woodward, Wurster, Yalcinkaya, Yang, Zurek, Zwiesele, Šesták   +145 more
core   +1 more source

Residual Stress States in Microstructurally Graded PBF–LB/M Austenitic Steel Components

Advanced Engineering Materials, EarlyView.
This study examines microstructurally graded 316L rectangular tube profiles fabricated via PBF–LB/M using a dual‐laser system. A 1 kW top‐hat and a 400 W Gaussian laser create distinct grain sizes and crystallographic texture. Mechanical properties are linked to microstructural evolution driven by processing conditions.
Nico Möller, Florian Loebich, Thomas Wegener, Julia Richter, Jens Gibmeier, Thomas Niendorf   +5 more
wiley   +1 more source

Plastic Quantum Crystals

Physics, 2013
Compared to classical solids, the quantum solid helium-4 can undergo a giant plastic deformation that is also reversible.
openaire   +3 more sources

CALPHAD‐Guided Prediction and Interpretation of Phase Formation in Ta–Mo–Cr–Ti–Al Refractory High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
This study designs Ta–Mo–Cr–Ti–Al refractory high‐entropy alloys with a disordered body‐centered‐cubic A2 crystal structure aiming for improved ductility, lower density, and oxidation resistance. Four alloy compositions are identified by thermodynamic calculations.
Kateryna Khanchych, Chongchong Tang, Carsten Schroer, Björn Schäfer, Judith Jung, Michael Dürrschnabel, Ute Jäntsch, Bronislava Gorr   +7 more
wiley   +1 more source

Review on Slip Transmission Criteria in Experiments and Crystal Plasticity Models

, 2015
A comprehensive overview is given of the literature on slip transmission criteria for grain boundaries in metals, with a focus on slip system and grain boundary orientation.
Bayerschen, E., Böhlke, T., McBride, A. T., Reddy, B. D.   +3 more
core   +1 more source

Dislocation‐Mediated Thermoelectric Performance and Mechanical Behavior

Advanced Engineering Materials, EarlyView.
Dislocations can scatter phonons to reduce thermal conductivity, thereby enhance thermoelectric performance. However, dislocations also impact mechanical properties, leading to increased brittleness and altered plasticity. It is essential to clarify the complex relationship between dislocations, thermal transport, and mechanical stability to achieve a ...
Bangzhi Ge, Yuan Yu, Chongjian Zhou
wiley   +1 more source

Dislocation Slip or Phase Transformation Lead to Room-Temperature Plasticity in Diamond: Comment on Plastic Deformation of Single-Crystal Diamond Nanopillars [PDF]

arXiv, 2020
Despite decades of extensive research on mechanical properties of diamond, much remains to be understood in term of plastic deformation mechanisms due to the poor deformability at room temperature. In a recent work in Advanced Materials, it was claimed that room-temperature plasticity occurred in <001>-oriented single-crystal diamond nanopillars based ...
arxiv