Results 21 to 30 of about 24,397 (266)

Nanoparticle influence into the structure of structural steel

Металознавство та обробка металів, 2020
It is shown in result of the analysis of nanoparticle production processes that among the numerous methods of metal nanoparticle producing, the electrospark granule processing in liquids allows to obtain nano-objects at high temperatures, pressures, and ...
Aftandiliants I.G. , Lopatko К.G.
doaj   +1 more source

Dysprosium substituted nickel cobalt ferrite nanomaterials and their composites with reduced graphene oxide for photocatalysis

Journal of Taibah University for Science, 2020
High-quality nanostructure of dysprosium substituted nickel–cobalt ferrite and their composite with reduced graphene oxide (rGO) were synthesized. The structuraland photocatalytic properties of prepared samples were studied.
Muhammad Shahid, Ibrahim A. Alsafari, Akmal Jamil, Fekri A. Ahmed Ali, Sajjad Haider, Philips Agboola, Imran Shakir   +6 more
doaj   +1 more source

Physical Modeling of Core Losses in Ferrite E-Cores

IEEE Open Journal of Power Electronics
The development of advanced power electronic converters requires an accurate calculation of core losses in magnetic devices. But the losses in the widely used ferrite cores depend on the shape of the core, especially above 10 kHz, meaning that core ...
Theophane Dimier, Jurgen Biela
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

High chrome cast iron for mineral processing and conveying equipment parts

Литьë и металлургия, 2022
The main reasons for the formation of microand macrocracks and other defects in waterjet castings, which significantly reduce their service life, are analyzed.
A. S. Gudenko, N. S. Gushchin, E. A. Makarova, N. V. Parshikova   +3 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Cavitation Erosion Behavior of 2205 and 2507 Duplex Stainless Steels in Distilled Water and Artificial Seawater

Tribology Online, 2023
Herein, cavitation erosion tests were carried out on 2205 and 2507 duplex stainless steels (DSSs) in distilled water and artificial seawater using ultrasonic cavitation erosion equipment.
Yapeng Wu, Ying Lian, Yang Li, Mao Feng
doaj   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Characterization of Microstructure and Localized Corrosion Resistance of Heat-Treated 17-4 PH Stainless Steel Fabricated by Material Extrusion

Metals
The quality, reproducibility, and reliability of additive-manufactured parts strongly depend on optimizing printing parameters and post-processing treatments.
Pietro Forcellese, Tommaso Mancia, Michela Simoncini, Tiziano Bellezze   +3 more
doaj   +1 more source

Temperature dependence on the mass susceptibility and mass magnetization of superparamagnetic Mn–Zn–ferrite nanoparticles as contrast agents for magnetic imaging of oil and gas reservoirs

Journal of Experimental Nanoscience, 2018
The mass susceptibility (χmass) and mass magnetization (Mmass) were determined for a series of ternary manganese and zinc ferrite nanoparticles (Mn–Zn ferrite NPs, MnxZn1−xFe2O4) with different Mn:Zn ratios (0.08 ≤ x ≤ 4.67), prepared by the thermal ...
Lauren Morrow, Brendan Snow, Arfan Ali, Samuel J. Maguire-Boyle, Zeyad Almutairi, David K. Potter, Andrew R. Barron   +6 more
doaj   +1 more source