Results 51 to 60 of about 638 (173)

Phase formation in the CaO–Al2O3–ZnO system as an analogue to CaO–Al2O3–MgO in spinel containing refractories

Journal of the American Ceramic Society, Volume 108, Issue 5, May 2025.
Abstract Recently, gahnite (ZnAl2O4) is gaining attraction as a potential refractory ceramic because of the similarity of its structure and properties with those of magnesium aluminate (MgAl2O4) spinel refractories. Formation of MgO and hibonite solid solution (CaMgxAl12−xO19−0.5x; 0 ≤ x ≤ 0.18), CAM‐I (Ca2Mg2−3xAl28+2xO46 (0 ≤ x ≤ 0.3), and CAM‐II ...
Rajat Durgesh Ramteke, James G. Hemrick, Manoj K. Mahapatra   +2 more
wiley   +1 more source

Effects of Tundish Cover Powder and Teeming Stream on Oxidation Rate of Molten Steel in Tundish.

ISIJ International, 1998
The oxidation rate of the molten steel covered with the tundish cover powder and the molten steel being teemed was measured and the reaction mechanism was investigated as a basic study to quantify the oxidation rate of molten steel at different parts in an actual tundish.
Sasai, Katsuhiro, Mizukami, Yoshimasa
openaire   +2 more sources

Investigation of hot ductility behavior of micro‐alloyed steel and the effect of strain rate and dynamic phase transformation on the 2nd ductility minimum

Materialwissenschaft und Werkstofftechnik, Volume 56, Issue 4, Page 601-611, April 2025.
Hot tensile testing of low carbon microalloyed steel at 650 °C–1100 °C and strain rates of 10−2 s−1 and 10−3 s−1 revealed a ductility minimum at 700 °C–850 °C. Thick ferrite films at <700 °C led to ductile fracture, while thinner films in the 700 °C–850 °C range caused brittle intergranular fracture.
S. Bakhtiari, S. S. Sharifi, S. Ilie, C. Sommitsch   +3 more
wiley   +1 more source

Production Practice for Improvement of Quality of Tube Bloom by Increasing Basicity of 26 t Tundish Covering Powder

Teshugang, 2017
The metallurgy flowsheet of tested production steel grades 26CrMo4, 30Mn5 and 30Mn6V is 150 t EAF- LF-VD-0210 〜310 mm tube bloom casting. The results of analysis on inclusions in steels steelmaking by 6 heats using original low basicity tundish covering ...
李国丰, 王学义, 张兵, 孙健
doaj  

Modeling the Impact of Varying Levels of Inclusion Adhesion on Deposition in a Pilot‐Scale Nozzle

steel research international, Volume 96, Issue 3, March 2025.
Inclusion deposition is the dominant mechanism in nozzle clogging of submerged entry nozzles. Previous modeling attempts of inclusion deposition have assumed that any contact between the inclusion and nozzle wall results in adhesion. In this work, an Eulerian‐Lagrangian simulation with a stochastic adhesion model is used to study the effects of ...
Kaamil Ur Rahman Mohamed Shibly, Stephen Tullis, André B. Phillion   +2 more
wiley   +1 more source

Flow and mixing of liquid steel in multi-strand tundish delta type – physical modelling

Metalurgija, 2015
The article presents the results of liquid steel flow and mixing in tundish when applying different equipment to modernize the tundish working zone. The six-strand continuous casting tundish of a trough-type was studied.
T. Merder, J. Pieprzyca, M. Warzecha, P. Warzecha   +3 more
doaj  

PIV on Steady/Unsteady Flow Characteristics of Three‐Flow Tundish

The Journal of Engineering, Volume 2025, Issue 1, January/December 2025.
This study develops a hydraulic simulation system with adjustable flow rates and controllable liquid levels, using PIV velocity measurement to quantitatively assess the flow characteristics of the tundish during non‐steady‐state flow processes. ABSTRACT The non‐steady working state of the tundish, caused by the ladle changeover process, represents a ...
Shikai Zhou, Shuai Zhang, Qi Gao, Yanghu Hu, Yingbo Zhao, Yazhu Zhang, Jun Huang   +6 more
wiley   +1 more source

Modeling of inclusion removal in a tundish

Metallurgical and Materials Transactions B, 1999
Mathematical models have been developed to predict the removal of alumina inclusions from molten steel in a continuous casting tundish, including the effects of turbulent collisions, reoxidation, flotation, and removal on the inclusion size distribution.
Yuji Miki, Brian G. Thomas
openaire   +1 more source

Overview of application of automated SEM/EDS measurements for inclusion characterization in steelmaking

MetalMat, Volume 1, Issue 2, December 2024.
This paper reviews the use of the automated scanning electron microscope equipped with the energy dispersive spectroscope (SEM‐EDS) to analyze non‐metallic inclusions which are found in steel. Historical developments and further refinements of this method have been documented.
Shashank Ramesh Babu, Susanne K. Michelic   +1 more
wiley   +1 more source

Bubble Characteristics Required for the Complete Removal of Alumina Inclusions from Steel Melts

steel research international, Volume 95, Issue 11, November 2024.
Illustration of burst (or collapsed) microbubbles of argon trapped within a “flash‐frozen” sample of low melting point alloy (freezing point +57 °C), following rapid dipping and withdrawal of a cooled copper bar (≈at −100 °C) from the bath of the molten metal alloy. There, the submerged gas injection system is subjected to rapidly shearing metal flows,
Roderick I. L. Guthrie, Mihaiela M. Isac
wiley   +1 more source