steel research international

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Online ISSN: 1869-344X

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    Volume 85, Issue 10

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Recently Published Articles

  1. Precipitation Characteristics in a Low-Carbon Vanadium–Titanium-Bearing Steel

    Jun Chen and Guo-Dong Wang

    Article first published online: 28 OCT 2014 | DOI: 10.1002/srin.201400275

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    The precipitation hardening attracts more and more researchers' attentions due to its higher strengthening effect and relatively lower brittle vector. The objective of the present work is to investigate the chemical composition, crystal structure, and lattice parameter of nanometer-sized carbides in a low-carbon vanadium–titanium-bearing steel and the orientation relationships between precipitates and ferrite matrix using transmission electron microscope.

  2. Numerical, Physical, and Industrial Studies of Liquid Steel Chemical Homogenization in One Strand Tundish with Subflux Turbulence Controller

    Adam Cwudziński

    Article first published online: 24 OCT 2014 | DOI: 10.1002/srin.201400207

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    The object of investigation is an one-strand slab tundish. For the set zone of alloy feeding, numerical simulations, laboratory experiments (with a physical water model), and industrial experiments are carried out. The hybrid pulse-step method for introduction of an alloy addition to liquid steel is developed. In the tundishes with STC and dam, a reduction in mixing time is noted.

  3. Microalloying Effect on the Activation Energy of Hot Deformation

    Moo-Young Seok, In-Chul Choi, Yakai Zhao, Dong-Hyun Lee, Jung-A. Lee and Jae-il Jang

    Article first published online: 24 OCT 2014 | DOI: 10.1002/srin.201400255

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    In this study, through a series of hot compression tests of four different microalloyed steels, we systematically explore the influences of Nb, V, Ti, and Mo on the Q and have directly compared the effect of each element in a quantitative manner.

  4. Numerical Simulation of Flow-Induced Wall Shear Stresses in Three Different Shapes of Multi-Strand Steelmaking Tundishes

    Md Irfanul Haque Siddiqui and Pradeep Kumar Jha

    Article first published online: 15 OCT 2014 | DOI: 10.1002/srin.201400217

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    Numerical investigation of the effect of three different tundish shapes, i.e., boat, T-shape, and V-shape on generation of wall shear stress are carried out. Average wall shear stress value is maximum for V-shape tundish as compared to other two configuration tundishes. Similarity in variation of wall shear stress and turbulent kinetic energy is observed at different walls.

  5. Mathematical Modeling of Nitrogen Removal from the Vacuum Tank Degasser

    Shan Yu, Jyrki Miettinen, Lei Shao and Seppo Louhenkilpi

    Article first published online: 14 OCT 2014 | DOI: 10.1002/srin.201400093

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    This paper is focused on predicting nitrogen removal from the vacuum degasser specially taking into account the multi-component effect of steel composition. An integrated computational fluid dynamics (CFD) model is developed. Two operating diagrams are obtained to give the correlations between chemical reaction rate constant, initial nitrogen content, and final nitrogen content in liquid steel.