Results 111 to 120 of about 88,198 (304)

Quantitative neutron characterization of dislocation-nanoprecipitate synergistic strengthening in additively manufactured FeCoNiAlTi high-entropy alloy with ultrahigh yield strength

Journal of Materials Research and Technology
Introducing dislocations and nanoprecipitates is an effective strategy to strengthen alloys, but reliable bulk quantification of dislocation density and coherent nanoprecipitate content remains challenging.
Jinqiang Shi, Jiazheng Hao, Huaile Lu, Sihao Deng, Zhijian Tan, Feiran Shen, Lunhua He, Gang Wang   +7 more
doaj   +1 more source

Effects of Isothermal Temperature on Dislocation Density in Bainite Transformation of 4140 Steel. [PDF]

Materials (Basel), 2022
Zhu J, Barber G, Sun X.
europepmc   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Dislocation density measurements in crept artificial ice with and without microparticles using modified Williamson-Hall and Warren-Averbach methods

Journal of Glaciology
To investigate dislocation densities of deformed polycrystalline ice the modified Warren-Averbach and modified Williamson-Hall plots of X-ray line broadening have been applied to artificial ice with and without silica particles, which model ...
Tomoyuki Homma, Kazuteru Hirai, Goto-Azuma Kumiko, Nobuhiko Azuma   +3 more
doaj   +1 more source

Analysis and Modeling of Stress-Strain Curves in Microalloyed Steels Based on a Dislocation Density Evolution Model. [PDF]

Materials (Basel), 2022
Sobotka E, Kreyca J, Poletti MC, Povoden-Karadeniz E.   +3 more
europepmc   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Effect of Microstructure and Dislocation Density on Material Removal and Surface Finish of Laser Powder Bed Fusion 316L Stainless Steel Subject to a Self-Terminating Etching Process. [PDF]

3D Print Addit Manuf, 2023
Prochaska S, Walker M, Hildreth O.
europepmc   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Predictive Microstructural Modeling of Grain-boundary Interactions and Their Effects on Overall Crystalline Behavior

, 2009
A dislocation-density grain boundary interaction scheme (DDGBI) has been developed to account for complex interrelated dislocation-density interactions of emission, absorption and transmission in grain-boundary (GB) regions for bicrystals and ...
Shi, Jibin
core  

Multiscale investigation of precipitate-dislocation interactions in additive manufacturing: a coupled phase-field and thermal stress dynamics approach

Virtual and Physical Prototyping
Non-equilibrium solidification during NiTi alloys manufacturing via Laser Beam Powder Bed Fusion (PBF-LB), induces dendritic morphologies and heterogeneous precipitate distribution.
Xin Lin, Xun Li, Yan Zhou, Yuanyuan Li, Sunming Chen, Kunpeng Zhu   +5 more
doaj   +1 more source