Results 141 to 150 of about 67,208 (284)

Evaluating Plasma Torches as a Low‐Decarburization Preheating Method for MgO–C Refractory Linings

steel research international, EarlyView.
This study evaluates direct current (DC) plasma torches using nitrogen as an alternative preheating method for magnesia‐carbon (MgO–C) refractory‐lined ladles. Full‐scale trials at 0.7 and 1.5 MW are compared to conventional gas burner. Plasma‐heated samples show lower decarburization and improved surface integrity due to partial sintering and reduced ...
Marcus Holmström, Alvaro Rubio Ordoñez, Roberto Caballero Carlon, Björn Glaser   +3 more
wiley   +1 more source

Sustainable Concrete for the 21st Century Concept of Strength through Durability [PDF]

, 2008
The world is passing through difficult and troubled times, and we live in a rapidly changing world. The construction industry is facing many challenges – global warming, climate change forces, and the capability to achieve sustainable development and ...
Swamy, R.N.
core  

HWTS 50 Tool Steel Tailored for Laser Powder Bed Fusion: Sliding Wear of Bare Surfaces and Nitriding Response in Comparison with 18Ni300 and AISI H13

steel research international, EarlyView.
This work investigates the wear resistance and nitriding behavior of PBF‐LB/M‐processed Osprey HWTS 50, a lean hot work tool steel. Three heat treatment conditions are compared to conventional wrought H13, H11, and PBF‐LB/M 18Ni300. The study highlights HWTS 50's enhanced nitrogen diffusion, deeper nitriding hardness depth, and comparable or improved ...
Jonathan Hann, Giorgia Lupi, Sylvain Dossin, Riccardo Casati, Mandanà Moshiri, Arne Röttger, Faraz Deirmina   +6 more
wiley   +1 more source

Highly Abrasion-resistant and Long-lasting Concrete [PDF]

, 2019
Studded tire usage in Alaska contributes to rutting damage on pavements resulting in high maintenance costs and safety issues. In this study binary, ternary, and quaternary highly-abrasion resistant concrete mix designs, using supplementary cementitious ...
Liu, Jenny, Murph, Diane
core  

Microstructure, Defects, and Fatigue Response of High‐Strength Tool Steels

steel research international, EarlyView.
The martensitic tool steel family is designed for use in various working environments where they are subjected to repeatedly high mechanical loads. Despite the continuous upgrade of material´s microstructures through compositional development or processing techniques, defects remain a critical factor for the tool performance by leading to fatigue ...
Katerina Chantziara, Jens Bergström, Dimitrios Nikas, Mikael Thomas Grehk   +3 more
wiley   +1 more source

Economic and Low-Carbon Cementitious Materials Based on Hot–Stuffy Steel Slag

Buildings
Ordinary steel slag serves as a supplementary cementitious material (SCMs) to enhance the resource efficiency of industrial waste and contribute to decarbonization and economic benefits.
Xupeng Zhang, Changze Xu, Mingze Wang, Shirong Du, Yan Li, Guoqing Wang   +5 more
doaj   +1 more source

Bath Vibration During Open Eye Formation in a Physical Model of a Steelmaking Ladle

steel research international, EarlyView.
Using a physical model, this study shows that vibration measurements reliably predict open eye size in steelmaking ladles, offering a practical alternative to visual monitoring. Vessel vibrations stabilize faster than the open eye, except at high frequencies near the bottom.
Mika Pylvänäinen, Juhani Nissilä, Ville‐Valtteri Visuri, Aki Sorsa, Matias Hauru, Jouni Laurila, Toni Liedes   +6 more
wiley   +1 more source

Effect of Refining Slag Basicity on the Molten Steel Cleanliness of GCr15SiMn Bearing Steel

Teshugang
This article studies the effect of different refining slag basicity on the cleanliness of GCr15SiMn bearing steel by combining laboratory slag-steel equilibrium experiments and theoretical calculations.
Zhang Guolei, Guo Yunfei, Qiu Mian, Chen Gang, Cheng Guoguang, Zhang Tao   +5 more
doaj  

Performance of sulfur/steel slag composite matrix in removing nitrate from surface water with low-carbon content

Gongye shui chuli
The accumulation of nitrogen pollutants can easily lead to eutrophication of water bodies, and NO3--N is one of the main nitrogen pollutants. A composite matrix of steel slag and elemental sulfur was used for sulfur autotrophic denitrification.
PENG Xianchun, ZHENG Lili, LU Haoran, WANG Zhefeng, ZHU Zheng, LIANG Wenyan   +5 more
doaj   +1 more source

A Thermodynamic‐Kinetic Model for Basic Oxygen Furnace Tapping: Improved Prediction of Phosphorus and Steel‐Slag Evolution

steel research international, EarlyView.
This study develops a thermodynamic–kinetic model for basic oxygen furnace tapping and validates its accuracy under near‐equilibrium and far‐from‐equilibrium initial conditions. Comparison with a reference model demonstrates its broader applicability. The model further reveals the evolution of key steel and slag components, providing new transparency ...
Puhong Cheng, Christian Bernhard, Michael Bernhard, Daniel Kavić, Jianghua Qi   +4 more
wiley   +1 more source