Results 111 to 120 of about 200,437 (228)

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

open access: yessteel 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   +6 more
wiley   +1 more source

Analytical Method Analysis based on Eccentric Load of Slewing Bearing

open access: yesJixie chuandong, 2019
The blast furnace top gearbox is the key equipment of the stock distribution of blast furnace. The quality of the blast furnace top gearbox is directly related to the quality and efficiency of the blast furnace iron making.
Weiting Zeng, Manyi Chen
doaj  

Status and prospects of research on HCl removal from blast furnace gas

open access: yes工程科学学报
To address the harm caused by chlorine ions in blast furnace gas, and without altering the fundamental blast furnace ironmaking process, this article conducts an in-depth study focused on various strategies. These include controlling the chloride content
Gang LU   +8 more
doaj   +1 more source

Hydrogen Reduction of Synthetic Fe2O3 Pellets: The Role of Calcium Oxide in Porosity Evolution and Reduction Kinetics

open access: yessteel research international, EarlyView.
At 800 °C, hematite pellets containing 0.9 wt% CaO reduce in hydrogen at rates 1.2–1.4 times those of pure pellets. The inward‐moving reaction front supports a topochemical description, and FeO‐to‐Fe kinetics are consistent with mixed control by interfacial reaction and intrapellet diffusion.
Jess Kuper, Ali Zakeri, Leili Tafaghodi
wiley   +1 more source

Effect of Hot Rolling Temperature on Oxide Scale Formation, Grain Size, and Pickling of Stainless Steel

open access: yessteel research international, EarlyView.
The effects of finishing rolling temperature, coiling temperature, and annealing on scale formation and pickling performance are studied. Scale morphology and composition are studied via SEM‐EDS, and pickling performance is studied by evaluating scale residues and mass losses during pickling.
Roosa Kähkönen   +5 more
wiley   +1 more source

Properties of alkali-activated ground granulated blast furnace slag blended with ferronickel slag

open access: yes, 2018
This study aims to investigate the feasibility of using ferronickel slag (FNS) blended with ground granulated blast furnace slag (GGBS) to produce alkali-activated cements (AACs). Sodium silicate (Na2SiO3) and sodium hydroxide (NaOH) are used to activate
Li, Baoliang   +4 more
core   +1 more source

Progress in Explosion Mechanisms and Prevention Technologies for Direct Chill Casting Aluminum Melt Upon Water Contact: A Review

open access: yesSafety Science and Technology, EarlyView.
Molten aluminum–water explosion triggered by leakage remains the core unresolved safety hazard hindering safe production in aluminum direct chill casting. This review summarizes its explosion mechanism, key influencing factors, prevention technologies, existing gaps, and prospects of intelligent multi‐technology integrated explosion‐proof systems ...
Min Wang   +5 more
wiley   +1 more source

Experimental and design‐oriented research on fiber reinforced concrete segmental tunnel linings: A systematic review

open access: yesStructural Concrete, EarlyView.
Abstract The use of fiber reinforced concrete (FRC) in precast tunnel segments is among the most established and representative applications of this material. Over the past two decades, numerous tunnel linings were constructed with partial or total substitution of conventional steel reinforcement by fibers, this yielding to quantifiable benefits in ...
Vladimir Rusanov   +4 more
wiley   +1 more source

Recent Advances in Blast-Furnace Technology

open access: yes, 1962
THE greatest single advance in blast-furnace technology in recent years has been the recognition that blast-furnace operations can be improved upon by proper process-engineering analysis.The blast-furnace is a moving packed-bed reactor in which ...
Davis Jr, W L, Agrawal, J C
core   +1 more source

Cold‐curing effects on the strength development and sulfuric acid resistance of basalt fiber‐reinforced hybrid alkali‐activated slag mortars

open access: yesStructural Concrete, EarlyView.
Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci   +3 more
wiley   +1 more source

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