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Some aspects of physical metallurgy of microalloyed steels

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2019
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Authors
Radović, Nenad
Vukicević, Goran
Glišić, Dragomir
Dikić, Stefan
article (publishedVersion)
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Abstract
Some aspects of deformation, precipitation, and recrystallization behavior in medium carbon V-microalloyed and low carbon Nb/Ti-microalloyed steels are presented in the paper. Changes in microstructure are explained together with methods of quantification. The temperature of No-recrystallization (Tnr) is defined as a milestone to show the onset of retardation of recrystallization while the apparent activation energy for hot working shows the extent of this retardation. In the case of high cooling rates, this method is not sufficiently sensitive and Trl (recrystallization limit temperature) and Trs (recrystallization stop temperature) must be evaluated from softening data. Paper presented the possibility to estimate Tnr temperature on six stands finishing train at Hot Strip Mill in HBIS Iron and Steel Serbia, Smederevo as well as the activation energy for static recrystallization, QSRX, derived from Tnr temperatures.
Keywords:
microalloyed steels / deformation / recrystallization / precipitation / Boratto test
Source:
Metallurgical & Materials Engineering, 2019, 25, 4, 247-263
Publisher:
  • Savez inženjera metalurgije Srbije, Beograd

DOI: 10.30544/468

ISSN: 2217-8961

WoS: 000507542800002

Scopus: 2-s2.0-85078523086
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URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4084
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  • Radovi istraživača / Researchers’ publications (TMF)
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Tehnološko-metalurški fakultet

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