Results 161 to 170 of about 67,208 (284)

Influence of an Electromagnetic Field on Direct Reduction of Iron Oxide Using Hydrogen as a Reducing Agent

steel research international, EarlyView.
This study investigates the reduction of pure iron oxides and industrial iron ore using hydrogen gas as a reducing agent. Additionally, to determine whether the reduction process can be accelerated, electromagnetic fields of 50 Hz and 25 kHz were applied.
Mykyta Levchenko, Oleksandr Gryshyn, Oleksandr Velychko, Oleksandr Grek, Anzhela Nadtochiy, Olena Volkova   +5 more
wiley   +1 more source

Agglomeration Behavior of Nonmetallic Particles on the Surface of Si‐Killed Liquid Steel Using HT‐CSLM: An In Situ Investigation

steel research international, EarlyView.
The in situ agglomeration behavior of semisolid Al–silicate inclusions in Si‐killed steel is studied using high‐temperature confocal scanning laser microscopy. Particle motion and interparticle forces at the steel/argon interface are quantified and compared with a modified capillary interaction model.
Suwam Kumar, Muhammad Nabeel, Angshuman Podder, Andre B. Phillion, Neslihan Dogan   +4 more
wiley   +1 more source

The Application of Hydrochar Composite Briquettes for Sustainable Slag Foaming in the Electric Arc Furnace Process

steel research international, EarlyView.
Hydrochar‐mill‐scale briquettes with varying C/O molar ratios (0.07–0.90) have been tested at 1650 °C to evaluate their slag foaming performance for electric arc furnace application. All seven briquette recipes developed succeed in promoting slag foaming.
Yu‐Chiao Lu, Andrey Karasev, Björn Glaser, Chuan Wang   +3 more
wiley   +1 more source

Sequential Reduction of Chromite Pellets Using Hydrogen and Silicon Carbide for Carbon Emission Abatement During Ferrochrome Production

steel research international, EarlyView.
H2 prereduction selectively metallizes Fe in UG2 chromite pellets at 1100°C, while silicon carbide becomes active at 1300°C to convert remaining Cr2O3 to carbides and promote Cr metallization. By separating the roles of H2 and SiC, the sequential route reaches up to 65.7% Cr metallization and suppresses in‐furnace CO generation by ≈75% versus ...
D. Coertzen, M. Tangstad, J. P. Beukes, P. G. van Zyl, D. G. Bessarabov, S. P. du Preez   +5 more
wiley   +1 more source

Kinetics and mechanism of ultrasound-enhanced citric acid leaching of chromium from steel slag. [PDF]

Ultrason Sonochem
Nie Z, Niu F, Zhang J, Wang X, Chen Q.
europepmc   +1 more source

Influence of Oxygen Contamination on the Genesis of Nonmetallic Inclusions in a Microalloyed Steel

steel research international, EarlyView.
Oxygen contamination during melting of steels strongly affects the evolution of nonmetallic inclusions. Controlled remelting experiments, combined with SEM/EDS analysis and thermodynamic simulations, reveal how reoxidation promotes the transformation of alumina‐based inclusions into complex FeO–MnO oxides and other interactions.
Leandro Pianca Prandi, Felipe Fardin Grillo, Estéfano Aparecido Vieira   +2 more
wiley   +1 more source

Utilization and Sustainability Evaluation of Steel Slag and RAP in Hot Recycled Asphalt Mixtures-Case Study. [PDF]

Materials (Basel)
Song L, Xie Z, Gao J, Gao C, Wang L, Tao M.   +5 more
europepmc   +1 more source

Barriers to Steel Decarbonization

steel research international, EarlyView.
Main identified barriers to steel decarbonization Carbon dioxide (CO2) emissions are a leading contributor to global climate change, necessitating urgent mitigation strategies. While various metrics—such as total national emissions, per‐capita output, and historical contributions—define responsibility, determining accountability remains complex ...
Pasquale Cavaliere
wiley   +1 more source

Early use of the reinforced concrete in the architecture of the Historicism in Austria–Hungary

Structural Concrete, EarlyView.
Abstract The study examines the early incorporation of reinforced concrete in the architecture of Historicism in Austria–Hungary. Spanning the late 19th to early 20th centuries, the research illuminates the period's stylistic pluralism and the transformative impact of reinforced concrete.
Éva Lovra, Zoltán Bereczki
wiley   +1 more source

Evaluation of copper slag blast media for railcar maintenance [PDF]

Copper slag was tested as a blasting substitute for zirconium silicate which is used to remove paint from railroad cars. The copper slag tested is less costly, strips paint faster, is produced near the point of need, provides a good bonding surface for ...
Finlayson, Mack H., Sagers, N. W.
core   +1 more source