Results 71 to 80 of about 20,999 (282)

Temperature and load-ratio dependent fatigue-crack growth in the CrMnFeCoNi high-entropy alloy [PDF]

, 2019
Multiple-principal element alloys known as high-entropy alloys have rapidly been gaining attention for the vast variety of compositions and potential combinations of properties that remain to be explored. Of these alloys, one of the earliest, the ‘Cantor
George, EP, Gludovatz, B, Laplanche, G, Ritchie, RO, Thurston, KVS, Yu, Q   +5 more
core  

A new first principles approach to calculate phonon spectra of disordered alloys

, 2011
The lattice dynamics in substitutional disordered alloys with constituents having large size differences is driven by strong disorder in masses, inter-atomic force constants and local environments. In this letter, a new first-principles approach based on
Dutta, Biswanath, Ghosh, Subhradip, Grånäs, Oscar, Sanyal, Biplab   +3 more
core   +1 more source

Preparation of nanoporous CoCr alloy by dealloying CrCoNi medium entropy alloys

Journal of Materials Research and Technology, 2020
High/Medium entropy alloys (H/MEAs) represent a new strategy for the design of materials with properties superior to those of conventional alloys. Here, we show a new field of application where the uniform mixtures of multiple principal elements in H/MEAs is utilized to create new type nanoporous alloys by dealloying. By using equiatomic CrCoNi MEAs as
Longfei Zeng, Chaoping You, Xufeng Cai, Chunming Wang, Xuehui Zhang, Tongxiang Liang   +5 more
openaire   +2 more sources

Effectiveness of rTMS on Working Memory and Inhibitory Impairments in Patients With Post‐Stroke Executive Deficits

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao, Rongwei Du, Zhujun Wang, Yang Gao, Meiling Cheng, Xianglong Wang, Wen Wu   +6 more
wiley   +1 more source

Effect of Cr₃C₂ Addition on Microstructure and Mechanical Properties of WC-CoNiFe Cemented Carbides

Metals
In traditional cemented carbides, Co is mainly used as a binder. Recently, replacing Co with medium- to high-entropy alloys has shown significant improvements in hardness, fracture toughness, high-temperature oxidation resistance, and corrosion ...
Jinbo Wu, Daping Ren, Bo Xie, Rongyue He, Zhanji Geng, Zichun Zhang, Yang Liu, Dong Wang, Yanghui Zhu, Wei Zhang   +9 more
doaj   +1 more source

Design and development of Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials

Materials & Design, 2021
Applying empirical alloy parameters (including Mo equivalent), the predicted ground state diagram, and thermodynamic calculations, noble nonequiatomic Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials (BioHEAs) were designed and newly ...
Yuuka Iijima, Takeshi Nagase, Aira Matsugaki, Pan Wang, Kei Ameyama, Takayoshi Nakano   +5 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Tribocorrosion Behavior of CoCrNi Medium Entropy Alloy in Simulated Seawater

Metals, 2022
Understanding the fundamental behaviors of tribocorrosion for metals is critical for their possible application in seawater. For the recently emerging medium entropy alloys (MEAs), while mechanical wear and corrosion phenomena have been established, such
Xian-Zong Wang, Yanfei Wang, Zhuobin Huang, Qing Zhou, Haifeng Wang   +4 more
doaj   +1 more source

Ab initio modeling of the energy landscape for screw dislocations in body-centered cubic high-entropy alloys

, 2020
In traditional body-centered cubic (bcc) metals, the core properties of screw dislocations play a critical role in plastic deformation at low temperatures.
Asta, Mark, Ding, Jun, Ritchie, Robert O., Yin, Sheng   +3 more
core   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source