Results 91 to 100 of about 88,198 (304)

Some interface theories and Hall–Petch relationship

Royal Society Open Science
In polycrystalline materials, an increase in the number of interfaces strengthens the material. For example, in deformation twins, deformation experiments have shown a correlation between the deformation-twin density and flow stress.
Hiroaki Yokoyama, Hiroyuki Nagahama
doaj   +1 more source

A Remark on Stress of a Spatially Uniform Dislocation Density Field

Journal of Elasticity, 2023
In an interesting recent paper [1] (A. Acharya, Stress of a spatially uniform dislocation density field, J. Elasticity 137 (2019), 151--155), Acharya proved that the stress produced by a spatially uniform dislocation density field in a body comprising a nonlinear elastic material may fail to vanish under no loads.
openaire   +3 more sources

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Anomalous growth of dislocation density in titanium during recovery

, 2023
It is generally believed that the dislocation density in cold-worked metals decreases during recovery. In this study, we used in-situ synchrotron X-ray diffraction (SXRD) to demonstrate that the dislocation density in $\alpha$-titanium increases at the ...
Ivan Ivanov, Bataev, Ivan, Ivanov, Ivan, Kemal Emurlaev, Ivan Bataev, Emurlaev, Kemal, Daria Lazurenko, Lazurenko, Daria, José Julio Gutiérrez Moreno, Gutiérrez Moreno, José Julio   +9 more
core   +1 more source

Characterizing the Substructural Changes in Metals by Microindentation and Various Numerical Approaches

Metals
This contribution compares various theories dealing with the assessment of dislocation density in metals subjected to different straining levels. The paper examines both substructure development and the evolution of dislocation densities in 1xxx, 5xxx ...
János György Bátorfi, Jurij J. Sidor
doaj   +1 more source

Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows

Advanced Engineering Materials, EarlyView.
A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba, Sang‐Hyeok Lee, Christina Gasper, Martina Freund, Sandra Korte‐Kerzel, Ulrich Kerzel   +5 more
wiley   +1 more source

Unintentionally doped semi-insulating GaN with a low dislocation density grown by metalorganic chemical vapor deposition

, 2014
Unintentionally doped semi-insulating GaN films possessing a low dislocation density are grown via metalorganic vapor phase epitaxy on a sapphire substrate.
He, XG, Zhang SM(张书明), Yang H(杨辉)   +2 more
core  

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Quantitative evaluation of dislocation density in SUS316L utilizing non-contact microwave reflection method

Mechanical Engineering Journal
Metallic materials are widely employed due to their exceptional mechanical attributes. Plastic deformation is a common issue that influences both the mechanical and electrical properties, with profound implications for the longevity of engineered ...
Guodong WANG, Shaojie GU, Yasuhiro KIMURA, Yuhki TOKU, Yang JU   +4 more
doaj   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source