Modifying metal with nanopowder in a continuous bar-casting machine

• Published in: Steel in translation Vol. 43; no. 6; pp. 341 - 343
• Main Authors: Protopopov, E. V., Seleznev, Yu. A., Cherepanov, A. N., Chinokalov, V. Ya, Foigt, D. V., Ganzer, L. A.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-06-2013; Springer Nature B.V
• Subjects: Chemistry and Materials Science; Cross sections; Materials Science; Nanocomposites; Nanomaterials; Nanostructure; Nonmetallic inclusions; Rebar; Reinforcing steels; Structural steels; density; rebar; nonmetallic inclusions; complex components; continuous-cast billet; macrostructure and microstructure; modification; nanopowder inoculation; mechanical properties
• ISSN: 0967-0912; 1935-0988
• DOI: 10.3103/S0967091213060168

The modification of metal by nanopowder is studied as a means of improving the quality of continuous-cast bar, complex components, and rebar. The introduction of TiC
x
N
y
-Fe nanopowder in the tundish of the continuous-casting machine reduces the liquation of the elements over the ingot cross section and the content of nonmetallic inclusions and also increases the structural and chemical uniformity. The use of nanopowder inoculators changes the structure of complex components (angle bar) and rebar, as well as the shape, size, and distribution of the nonmetallic inclusions, and also reduces the grain size and improves the mechanical properties.