Results 121 to 130 of about 17,379,007 (276)

Isothermal Reduction Behavior and Microstructural Evolution of Iron Ore Sinter Under Simulated Radial Blast Furnace Gas Atmospheres With Hydrogen Injection

steel research international, EarlyView.
Commercial iron ore sinter is reduced isothermally under operation‐derived radial blast furnace gas atmospheres with and without 20 kg H2/tHM injection. Hydrogen improves reduction at 900–1100 °C, whereas at 700 °C the high H2O content limits the wüstite‐to‐iron driving force.
Ahmed Abdelrahim, Sherif Hegazy, Mikko Iljana, Aki Koskela, Carmen van der Kroon, Timo Fabritius   +5 more
wiley   +1 more source

Prospects of Eliminating Fluorspar Consumption in a Sustainable Argon‐Oxygen‐Decarburization Process

steel research international, EarlyView.
This study aims at identifying pathways for eliminating fluorspar consumption in the argon‐oxygen‐decarburization (AOD) process. Thermodynamic calculations suggest the feasibility of completely replacing fluorspar with alternative fluxes such as Al2O3, Na2O, K2O, and Li2O of suitable amounts.
Yu‐Chiao Lu, Fredrik Engström, Jyrki Pitkälä, Mikael Ersson   +3 more
wiley   +1 more source

Experimental and Numerical Investigation of Biocarbon Injection Behavior for Electric Arc Furnace Slag Foaming

steel research international, EarlyView.
Biocarbon injection is investigated as a promising pathway for sustainable electric arc furnace steelmaking using a combined experimental–numerical approach. Results demonstrate that biocarbon can effectively penetrate slag and generate intense foaming within a defined operating window.
Christopher DiGiovanni, Tiago Fernandes Lins, Michael Strelbisky, Ka Wing Ng, Xianai Huang, Allan Runstedtler, Colin Scott   +6 more
wiley   +1 more source

Properties of Mortar Incorporating Iron Slag

, 2013
ME, CEDIron and steel slags are byproducts of the iron and steel industry. They are used not only in construction and road building, but also in other ways such as in waste stabilization.
Sulaiman, Tamara Humam
core  

A Critical Review on Nitrogen Control in the Scrap‐Based Electric Arc Furnace Steelmaking Route to Produce Low‐Nitrogen Steels

steel research international, EarlyView.
In primary electric arc furnace (EAF) steelmaking, carbon boiling removes nitrogen from liquid steel and sustains slag foaming. In 100% scrap‐ or hydrogen direct reduced iron (HDRI)‐based EAF steelmaking, carbon boiling is absent; therefore, carbonaceous material and oxygen injection into the slag is needed to maintain foaming and avoid nitrogen ...
Zushu Li, Lei Guo, Jintao Gao, Yuri Korobeinikov   +3 more
wiley   +1 more source

Atomic‐Scale Insights Into Tramp Element Segregation and Mechanical Performance of a Low‐Carbon Steel

steel research international, EarlyView.
Despite increased hardness, elevated tramp element concentrations in a ferritic‐pearlitic low‐carbon steel lead to enhanced toughness accompanied by a more homogeneous and finer ferritic microstructure. Atom probe tomography reveals pronounced segregation of some tramp elements at grain boundaries and ferrite–cementite interfaces, together with ...
Lukas Hatzenbichler, Maximilian Graf, Phillip Haslberger, Daniel Marian Ogris, Matthew Galler, Oleksandr Glushko, Ronald Schnitzer   +6 more
wiley   +1 more source

Hybrid Temperature Modeling for the Ruhrstahl–Heraeus Process: Coupling a Data‐Driven Approach With a Physics‐Based Process Model

steel research international, EarlyView.
A hybrid framework combining a mechanistic tanks‐in‐series model, thermodynamic data, and statistical learning methods was developed for continuous temperature prediction during RH vacuum treatment. The framework accounts for temperature changes caused by alloy additions, O2 blowing via top lance, and heat losses to the surroundings. Validation against
Daniel Kavić, Michael Bernhard, Hannes Prousch, Roman Rössler, Christian Bernhard   +4 more
wiley   +1 more source

Foamed Concrete Sealing Materials for Coal Seam Gas Drainage Boreholes: A Review

Safety Science and Technology, EarlyView.
This study investigates the sealing performance of foamed concrete in gas drainage boreholes. By comparing leakage pathways (a, c) with sealed systems (b, d), the research demonstrates how foamed concrete effectively fills mining‐induced fractures and resists deformation.
Jiaxing Zou, Erlei Su, Huanchun Liu, Xiangjun Chen, Lin Wang, Haidong Chen, Lin Li   +6 more
wiley   +1 more source

Comparative Study on Chloride Binding Capacity of Cement-Fly Ash System and Cement-Ground Granulated Blast Furnace Slag System with Diethanol-Isopropanolamine. [PDF]

Materials (Basel), 2020
Liu H, Zhang Y, Liu J, Feng Z, Kong S.
europepmc   +1 more source

The Rise of Layered Double Hydroxides (LDHs) in Hexavalent Chromium (Cr(VI)) Pollution Treatment: Performance, Optimization, and Challenges

Safety Science and Technology, EarlyView.
This article focus on the basic properties, adsorption processes, performance improvement strategies, and the facing challenges of LDHs. ABSTRACT Layered double hydroxides (LDHs), a class of inorganic materials with unique layered structures, exhibit significant potential in environmental remediation.
Wenqi Fan, Shuai Tian, Jiwen Lai, Zhiwu Min, Qingyang Qiu, Xian Li, Zuwen Liu   +6 more
wiley   +1 more source