Metallurgical and Materials Transactions B

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Study on the Volatilization Condensation Law of Pure Metallic Zinc and Lead During Vacuum Distillation
Metallurgical and Materials Transactions B - Tập 54 - Trang 3143-3154 - 2023
Jing Yang, Yuban Lei, Run Huang, Xuan He, Xiaodong Lv, Xue Deng, Renlin Zhu, Miao Li, Xianze Long
In this paper, pure metallic zinc was distilled under vacuum at different temperatures, and pure metallic lead was distilled under vacuum at different temperatures and holding times, the condensation law and microscopic morphology of the condensates were studied in a specially designed multi-stage condenser. The special multi-stage condenser also proved to be a better instrument. Theoretical analy...... hiện toàn bộ
Model for temperature profile estimation in the refractory of a metallurgical ladle
Metallurgical and Materials Transactions B - Tập 29 - Trang 651-659 - 1998
T. P. Fredman, H. Saxén
Modeling of the transient thermal state of metallurgical ladels is motivated by the need for estimating the drop in temperature of the liquid metal in the ladle. On-line estimation of the state is required, since the same ladle is used in a number of casting cycles with rapid changes in boundary conditions for the temperature field, and the conditions in the current as well as previous cycles affe...... hiện toàn bộ
Coke Size Degradation and Its Reactivity Across the Tuyere Regions in a Large-Scale Blast Furnace of Hyundai Steel
Metallurgical and Materials Transactions B - Tập 51 - Trang 1282-1288 - 2020
Tae Jun Park, Kwang Hyun Ko, Jong Hyup Lee, Sushil Gupta, Veena Sahajwalla, Byong Chul Kim
It has been well recognized that coke samples can be effectively taken out of working blast furnaces using a drilling machine at the tuyere level. The core represents samples with different temperature profiles at various tuyere regions of a large blast furnace. The average coke size at the tuyere level is known to be about 50 pct smaller than the charged cokes. Using fixed bed reactor and XRD tec...... hiện toàn bộ
Effect of Fluid Bypassing on the Experimentally Obtained Darcy and Non-Darcy Permeability Parameters of Ceramic Foam Filters
Metallurgical and Materials Transactions B - - 2017
Shahin Akbarnejad, Mohsen Saffari Pour, Lage Jonsson, Pär G. Jönsson
Abstract Ceramic foam filters (CFFs) are used to remove solid particles and inclusions from molten metal. In general, molten metal which is poured on the top of a CFF needs to reach a certain height to build the required pressure (metal head) to prime the filter. To estimate the required metal head, it is necessary to obtain permeability coefficients usin...... hiện toàn bộ
The modified quasichemical model I—Binary solutions
Metallurgical and Materials Transactions B - Tập 31 Số 4 - Trang 651-659 - 2000
Arthur D. Pelton, Sergei A. Degterov, G. Eriksson, Christian Robelin, Yves Dessureault
Effect of heat treatments on In-Situ Al2O3/TiAl3 composites produced from squeeze casting of TiO2/A356 composites
Metallurgical and Materials Transactions B - Tập 33 Số 1 - Trang 31-40 - 2002
Hsu, Chia-Wen, Chao, Chuen-Guang
In-situ Al2O3/TiAl3 intermetallic matrix composites were fabricated via squeeze casting of TiO2/A356 composites heated in the temperature range from 700 °C to 780 °C for 2 hours. The phase transformation in TiO2/A356 composites employing various heat-treatment temperatures (700 °C to 780 °C) was studied by means of differential thermal analysis (DTA), microhardness, scanning electron microscopy (S...... hiện toàn bộ
Kinetic studies of the oxidation of γ-aluminum oxynitride
Metallurgical and Materials Transactions B - - 2002
Xidong Wang, Wenchao Li, Du Sichen, Seshadri Seetharaman
X-ray Radioscopic Visualization of Bubbly Flows Injected Through a Top Submerged Lance into a Liquid Metal
Metallurgical and Materials Transactions B - Tập 51 - Trang 124-139 - 2019
Megumi Akashi, Olga Keplinger, Natalia Shevchenko, Sten Anders, Markus A. Reuter, Sven Eckert
We present an experimental study on the formation and behavior of a liquid metal bubbly flow arising from a downward gas injection through a top submerged lance (TSL). A visualization of the bubble dynamics was achieved by the X-ray radiography combined with high-speed imaging. The experiments were carried out in a parallelepiped container (144 × 144 × 12 mm3) using GaInSn, a ternary alloy that is...... hiện toàn bộ
Solidification of undercooled molten Ni-based alloys
Metallurgical and Materials Transactions B - Tập 32 Số 3 - Trang 449-457 - 2001
F. Liu, Dongyang Zhao, Yang Gao
Study of the Viscosity of Mold Flux Based on the Vogel–Fulcher–Tammann (VFT) Model
Metallurgical and Materials Transactions B - Tập 48 - Trang 220-226 - 2016
Lejun Zhou, Wanlin Wang
Viscosity is one of the most important properties of mold flux and affects the process of continuous casting significantly. In order to describe the variation of viscosity of mold flux accurately in a wide range of temperature occurring in the casting mold, a non-Arrhenius Vogel–Fulcher–Tammann (VFT) model was adopted in this study. The results showed that the adjusted coefficient of determination...... hiện toàn bộ
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