Results 81 to 90 of about 252,373 (307)

Mechanism of Stress-Driven Grain Boundary Migration in Nanotwinned Materials

Reviews on Advanced Materials Science, 2018
Stress-driven grain boundary (GB) migration in ultrafine-grained materials with nanotwinned structure is theoretically described. In the framework of the theoretical model, the stress-driven high-angle GB migration is accompanied by migration of twin ...
Skiba N.V.
doaj   +1 more source

Enhanced Erosion Resistance of an Ultrafine-Grained Ti Alloy with a PVD Coating

Metals, 2022
This paper presents the results of a comprehensive study of the erosive wear resistance, strength, and adhesive characteristics of the high-temperature structural titanium alloy Ti-5.7Al-3.8Mo-1.2Zr-1.3Sn (the Russian grade VT8M-1) with coarse-grained ...
Roman R. Valiev, Konstantin S. Selivanov, Marina K. Smyslova, Yuri M. Dyblenko, Yana N. Savina, Ruslan Z. Valiev, Irina P. Semenova   +6 more
doaj   +1 more source

Ethical Precision in Nanoscale Brain Interfacing

Advanced Science, EarlyView.
As brain interfaces approach the nanoscale, precision no longer only measures—it knows, predicts, and potentially reshapes the mind. This work argues that traditional ethics fails under such conditions and proposes a shift toward continuous, operation‐based governance using the recovery–discovery framework to track, constrain, and responsibly steer ...
Guilherme Wood
wiley   +1 more source

Nanostructures in Ti processed by severe plastic deformation [PDF]

, 2003
Metals and alloys processed by severe plastic deformation (SPD) can demonstrate superior mechanical properties, which are rendered by their unique defect structures.
Alexandrov, Brandes, Cottrell, E. Ma, Hecker, Hertzberg, Hinds, Honeycombe, J. Gubicza, J. Y. Huang, Liu, Meyers, Parker, Petch, Prangnell, R. Z. Valiev, Stolyarov, T. Ungár, Wilkens, Y. M. Wang, Y. T. Zhu   +20 more
core   +1 more source

Heterointerface‑Enabled Electrocatalysis for Efficient Energy Conversion

Advanced Science, EarlyView.
Functionally distinct A/B materials can be integrated at the nanoscale to create customized heterointerfaces with tunable band alignment and charge redistribution, providing fast electron and ion transport channels as well as cooperative dual active sites.
Liuru Fang, Hsiwen Wu, Hengyue Xu, Jie Zhang   +3 more
wiley   +1 more source

Grain boundary segregation in UFG alloys processed by severe plastic deformation [PDF]

, 2012
Grain boundary segregations were investigated by Atom Probe Tomography in an Al-Mg alloy, a carbon steel and Armco\trademark Fe processed by severe plastic deformation (SPD).
Enikeev, Nariman, Ganeev, Artur, Ivanisenko, Yulia, Murashkin, Maxim, Sauvage, Xavier, Valiev, R. Z.   +5 more
core   +3 more sources

Site‐Specific Hydroxide Formation and Corrosion on Mg Nanocrystals

Advanced Science, EarlyView.
Using single‐crystalline Mg nanocrystals, this study uncovers the intrinsic corrosion initiation mechanism. The stability of the protective Mg(OH)2 film depends on its interfacial coherence with the Mg substrate. Corrosion initiates at exposed corners, where film coverage is incomplete.
Yao Liu, Zongmin Sun, Chenhao Wu, Kun Yang, Zhiyuan Ge, Chenyu Wang, Wenpei Gao, Jianbo Wu, Xiaoqin Zeng   +8 more
wiley   +1 more source

Enhanced strength–ductility synergy in ultrafine-grained eutectic high-entropy alloys by inheriting microstructural lamellae

Nature Communications, 2019
Realizing improved strength–ductility synergy in eutectic alloys acting as in situ composite materials remains a challenge in conventional eutectic systems, which is why eutectic high-entropy alloys (EHEAs), a newly-emerging multi-principal-element ...
Peijian Shi, W. Ren, T. Zheng, Z. Ren, X. Hou, J. Peng, P. Hu, Yanfei Gao, Y. Zhong, P. Liaw   +9 more
semanticscholar   +1 more source

Deciphering Intricacies in Directional CO2 Conversion From Electrolysis to CO2 Batteries

Advanced Energy Materials, EarlyView.
This review will delve into the inherent connections and distinctions of CO2‐directed conversion in ECO2RR and CO2 batteries, in terms of product types, catalyst selection, catalytic mechanisms, and electrochemical performances, while proposing a benchmarking framework for the evaluation of CO2 batteries and innovative CO2 battery configurations for ...
Changfan Xu, Huaping Zhao, Lizhuang Chen, Weidong Shi, Guosheng Shao, Yong Lei   +5 more
wiley   +1 more source

Investigation of the Influence of Modes of Intensive Plastic Deformation on the Process of Grain Refinement of Titanium Alloy Ti-13Nb-13Zr at Equal-Channel Angular Pressing and Subsequent Rotary Forging Compression

Қарағанды университетінің хабаршысы. Физика сериясы
Ultrafine-grained materials are currently of great interest due to their excellent mechanical and functional properties. One of the most effective methods to obtain such materials with a unique combination of microstructure and properties is intense ...
A.B. Kengesbekov, A. Serikbaikyzy, D. Baizhan, Y.Y. Batanov, L.S. Kairbaeva   +4 more
doaj   +1 more source