Metallurgical and Materials Transactions B

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Clogging Behavior of a Submerged Entry Nozzle for the Casting of Ca-Treated Al-Killed Ti-Bearing Steel
Metallurgical and Materials Transactions B - Tập 52 - Trang 1186-1193 - 2021
Limei Cheng, Lifeng Zhang, Ying Ren, Wen Yang
The clogging behavior of a submerged entry nozzle for the casting of sulfur-containing Ca-treated Al-killed Ti-bearing steel was ex situ investigated. The surface of clogging consisted of CaO-TiOx phase, Al2O3-MgO phase, and Al2O3-CaO-SiO2 phase. The TiOx in the clogging was originated from the adhesion of inclusions in molten steel. The silicate inclusions were formed by the reaction between low-...... hiện toàn bộ
Healing of Double-Oxide Film Defects in Commercial Purity Aluminum Melt
Metallurgical and Materials Transactions B - - 2011
Fatemeh Najafzadeh Bakhtiarani, Ramin Raiszadeh
Tailored Magnetic Fields in the Melt Extraction of Metallic Filaments
Metallurgical and Materials Transactions B - - 2009
A. Cramer, Vladimir Galindo, Günter Gerbeth, Jānis Priede, Andris Bojarēvičs, Yu.M. Gel'fgat, Olaf Andersen, Cris Kostmann, G. Stephani
Solutions of iron oxides in molten cryolite
Metallurgical and Materials Transactions B - Tập 31 - Trang 609-613 - 2000
Ernest W. Dewing, Jomar Thonstad
All the iron oxides (FeO, Fe3O4, Fe2O3, and FeAl2O4) dissolve in cryolite-alumina melts to give solutions containing both Fe(II) and Fe(III). The factor controlling the Fe(II)/Fe(III) ratio is the oxygen pressure, and experimental results are interpreted on that basis. Predictions are made of the variation of solubility with oxygen pressure, and the standard potential of the Fe2+/Fe3+ redox couple...... hiện toàn bộ
Study on Viscosity of the La2O3-SiO2-Al2O3 Slag System
Metallurgical and Materials Transactions B - Tập 47 - Trang 2433-2439 - 2016
Yong-chun Deng, Sheng-li Wu, Yin-ju Jiang, Su-qi Jia
The viscosities and free-running temperatures of slag in a La2O3-SiO2-Al2O3 slag system were measured using an internal rotating cylinder method. For different La2O3 mass contents (45, 50, and 55 pct) in the La2O3-SiO2-Al2O3 ternary slag, the slag viscosity and free-running temperature decreased with a decrease in SiO2 content and an increase in Al2O3 content, and decreased with an increase in La2...... hiện toàn bộ
Influence of ultrasound in ammoniacal leaching of a copper oxide ore
Metallurgical and Materials Transactions B - Tập 28 - Trang 721-723 - 1997
K. Sarveswara Rao, K. L. Narayana, K. M. SWAMY, J. S. Murty
Mineral Liberation of Magnetite-Precipitated Copper Slag Obtained via Molten Oxidation by Using High-Voltage Electrical Pulses
Metallurgical and Materials Transactions B - Tập 47 - Trang 2754-2760 - 2016
Yong Fan, Etsuro Shibata, Atsushi Iizuka, Takashi Nakamura
Our proposed method, i.e., a controlled molten oxidation process under 1 vol pct oxygen, leads to selective precipitation of magnetite in a copper smelter slag for downstream iron separation. In the present study, the preroasted magnetite precipitated copper slag was treated via magnetite liberation, which was realized by using high-voltage electrical pulses. The mineral distribution was determine...... hiện toàn bộ
Measurement of liquid permeability in the mushy zones of aluminum-copper alloys
Metallurgical and Materials Transactions B - Tập 30 - Trang 745-750 - 1999
A. J. Duncan, Q. Han, S. Viswanathan
Measurements of liquid permeability in the mushy zones of Al-15.42 pct Cu and Al-8.68 pct Cu alloy samples were performed isothermally just above the eutectic temperature, using eutectic liquid as the fluid. A modified method was developed to determine the specific permeability as a function of time (K s) during the test from the data collected on these alloys. Factors affe...... hiện toàn bộ
Effect of Briquetting Pressure on the Properties, Reduction Behavior, and Reduction Kinetics of Cold-Bonded Briquette Prepared From Return Fines of Sinter
Metallurgical and Materials Transactions B - Tập 54 - Trang 355-369 - 2022
Ying Li, Yonggang Zang, Yuandong Xiong, Dejin Qiu, Chuan Wang, Lixiang Yan, Yaowei Yu
Return fines of sinter were used to prepare cold-bonded briquette (CBB) with different briquetting pressure and properties, and reduction behavior and reduction kinetics of CBB were investigated in the current study. Increasing the briquetting pressure leads to the increase of the CBB’s compressive strength. The changing tendency of the CBB’s compressive strength after reduction disintegration ind...... hiện toàn bộ
Experimental Study of the Cu2O-FeOx-CaO System in Equilibrium With Metallic Copper at 1200 °C to 1300 °C and at P(O2)s = 10−5 to 10−7 Atm
Metallurgical and Materials Transactions B - - 2022
Svetlana Sineva, Denis Shishin, Р. В. Старых, Maksym Shevchenko, Evgueni Jak
Abstract The experimental study of the phase equilibria between calcium ferrite slag, metallic copper, spinel and/or dicalcium ferrite in the Cu2O-FeO x -CaO system has been carried out. Effects of temperature, oxygen partial pressure and Fe/CaO ratio on phase a...... hiện toàn bộ
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