Advances in Ferrous Metallurgy: Poster Session
Sponsored by: AIST Metallurgy — Processing, Products & Applications Technology Committee
Program Organizers: Siddhartha Biswas, Big River Steel; Daniel Baker, LIFT; Lijia Zhao, Northeastern University
Monday 5:00 PM
October 10, 2022
Room: Ballroom BC
Location: David L. Lawrence Convention Center
F-4: Simulation Study on the Influence of Magnesia-carbon Material Embedded in Electrode on the Current Distribution and Temperature Distribution: Zhaozhao Yan1; Jiongming Zhang1; Yanbin Yin1; Huayang Liu1; Xingxing Wu1; Jiazheng Zhang1; Jiahao Cheng2; 1University of Science and Technology Beijing; 2Oak Ridge National Laboratory
The current distribution and temperature distribution in the electrode play an important role in the consumption of the electrode. In this paper, the three-dimensional unidirectional coupling model of current and heat transfer carrying alternating current is established, and the effects of magnesia-carbon material embedded in electrode on the current distribution and temperature distribution are studied. It is found that in the three-phase electrodes, the current is mainly distributed in the region near the left electrode. With the increase of the radius of the magnesia-carbon material embedded in the three-phase electrodes carrying alternating current, the region with high current density expands in the opposite direction to the left electrode, the temperature of the upper region and the height of the high-temperature region of the electrode are decreasing. Magnesia-carbon material embedded in the electrode can not only reduce the skin effect and proximity effect, but also reduce the temperature of the electrode.
F-5: Obtaining a Dual-phase Steel by Hot Rolling from a Chemically Modified Commercial Steel: Victor Gaytan1; Nancy López1; José Ramos1; Emmanuel Gutiérrez2; Constantin Hernández3; 1Instituto Tecnológico de Morelia; 2Universidad Autónoma de San Luis Potosí; 3CONACYT
In this work, the effect of the processing parameters on the microstructure and mechanical properties was studied to obtain a double-phase steel manufactured by hot rolling from a commercial steel. The chemical composition and the desired mechanical properties were determined by simulation. The steel with the target chemistry was manufactured from the chemical modification of a commercial AISI/SAE 1018 steel by melting in an induction furnace. Chemical analysis was developed by spark emission spectroscopy. The samples subjected to different lamination passes were analyzed by Optical Microscopy -MO- and Scanning Electron Microscopy -SEM-. The experimental results showed that it is possible to obtain a double-phasesteel through controlled rolling. The best combination of microstructure-mechanical properties, 50 and UTS > 1100 MPa, was obtained when the rolled steel in the range (at T>850‘C by controlled cooling rate at 30 Cls).