Results 41 to 50 of about 5,080,543 (255)

Machine Learning–Guided Surface Strain Engineering in Connected Platinum–Nickel Nanoparticle Catalysts for Advanced Oxygen Reduction Performance

Advanced Science, EarlyView.
Machine learning‐guided strain engineering enables highly active, durable, support‐free Pt–Ni nanonetwork catalysts for the oxygen reduction reaction. Analysis of a Pt‐based catalyst dataset identifies surface compressive strain as an effective descriptor associated with enhanced activity and provided practical design guidelines.
Aparna Chitra Sudheer, Gopinathan M. Anilkumar, Hidenori Kuroki, Yuuki Sugawara, Takeo Yamaguchi   +4 more
wiley   +1 more source

Applications of differential scanning calorimetry on materials subjected by severe plastic deformation

, 2008
Differential Scanning Calorimetry (DSC) is a thermal analysis technique that measures the energy absorbed or released by a sample as a function of temperature or time.
Gao, Nong
core   +1 more source

Nanomaterials by severe plastic deformation: review of historical developments and recent advances

Materials Research Letters, 2022
Severe plastic deformation (SPD) is effective in producing bulk ultrafine-grained and nanostructured materials with large densities of lattice defects.
Kaveh Edalati, Andrea Bachmaier, Victor A. Beloshenko, Yan Beygelzimer, Vladimir D. Blank, Walter J. Botta, Krzysztof Bryła, Jakub Čížek, Sergiy Divinski, Nariman A. Enikeev, Yuri Estrin, Ghader Faraji, Roberto B. Figueiredo, Masayoshi Fuji, Tadahiko Furuta, Thierry Grosdidier, Jenő Gubicza, Anton Hohenwarter, Zenji Horita, Jacques Huot, Yoshifumi Ikoma, Miloš Janeček, Megumi Kawasaki, Petr Král, Shigeru Kuramoto, Terence G. Langdon, Daniel R. Leiva, Valery I. Levitas, Andrey Mazilkin, Masaki Mito, Hiroyuki Miyamoto, Terukazu Nishizaki, Reinhard Pippan, Vladimir V. Popov, Elena N. Popova, Gencaga Purcek, Oliver Renk, Ádám Révész, Xavier Sauvage, Vaclav Sklenicka, Werner Skrotzki, Boris B. Straumal, Satyam Suwas, Laszlo S. Toth, Nobuhiro Tsuji, Ruslan Z. Valiev, Gerhard Wilde, Michael J. Zehetbauer, Xinkun Zhu   +48 more
doaj   +1 more source

High-Pressure Torsion for Synthesis of High-Entropy Alloys

Metals, 2021
High-pressure torsion (HPT) is widely used not only as a severe plastic deformation (SPD) method to produce ultrafine-grained metals but also as a mechanical alloying technique to synthesize different alloys.
Kaveh Edalati, Hai-Wen Li, Askar Kilmametov, Ricardo Floriano, Christine Borchers   +4 more
doaj   +1 more source

Annealing‐Induced Hardening in Ultrafine‐Grained and Nanocrystalline Materials [PDF]

Advanced Engineering Materials, 2019
Annealing of deformed metals is considered as a process necessarily leading to softening due to the annihilation of lattice defects. However, in ultrafine‐grained (UFG) and nanocrystalline materials, annealing at moderate temperatures may induce hardening.
openaire   +2 more sources

Ultrafine-Grained Metals [PDF]

, 2017
Ultrafine-grained metallic materials produced by severe plastic deformation methods are at the cutting edge of modern materials science. UFG-metals exhibit outstanding properties which make them very interesting for structural or functional engineering ...
Heinz Werner Höppel (Ed.)
core  

Grain Boundary Structure Ordering via Electroshock Treatment Enhances Strength‐Ductility Synergy

Advanced Science, EarlyView.
Electroshock treatment triggers atomic rearrangement, transforming disordered grain boundaries into ordered states without inducing recrystallization. This grain boundary ordering effectively relieves strain concentration and strengthens boundaries, enabling a simultaneous improvement in both strength and ductility.
Jiancheng Chen, Feng Wang, Dongsheng Qian, Huiling Wang, Jinsong Wu, Mingwang Fu, Lin Hua   +6 more
wiley   +1 more source

High strain rate superplasticity in ultrafine-grained Ti-4.5Al–3V–2Mo–2Fe alloy

Journal of Materials Research and Technology
High strain rate superplasticity (≥1 × 10−2 s−1) has been widely reported in low-melting-point materials such as aluminum and magnesium alloys, but remains underdeveloped in high-melting-point materials, particularly titanium alloys.
Peng Han, Jun Cai, Ke Qiao, Fengming Qiang, Wen Wang, Kuaishe Wang   +5 more
doaj   +1 more source

Microstructure and Mechanical Properties of Layered Aluminum Alloy Sheets Fabricated by Multi-Stack ARB Process [PDF]

Archives of Metallurgy and Materials
A layered Al sheet was fabricated by three cycles (c) of multi-stack accumulative roll-bonding (ARB) using commercial AA1050, AA5052, and AA6061 alloy sheets, and then annealed. The as-ARBed Al sheet showed ultrafine grained (UFG) structure, with average
Seong-Hee Lee
doaj   +1 more source

Review of principles and methods of severe plastic deformation for producing ultrafine-grained tubes

, 2019
Severe plastic deformation (SPD) is known to be the best method for producing bulk ultrafine-grained and nanostructured materials with excellent properties. Different SPD methods were developed that are suitable for sheet and bulk solid materials. During
Faraji, G., Kim, H. S.
core   +1 more source