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Determination of activation energy for static recrystallization using multipass continuous cooling torsion test

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Authors
Radović, Nenad
Drobnjak, Đorđe
Raić, Karlo
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Abstract
Two microalloyed steels (Nb low carbon and V medium carbon) were tested by means of multistage continuous cooling torsion with aim to evaluate the interpass recrystallization data, by means of Tnr (temperature of no-recrystallization) temperatures. In the region of short interpass intervals, i.e. region where the static recrystallization is governed by the presence of alloying elements in solid solutions, interpass time was varied between 1.8, 2.7, 5 and 10s. Since the recrystallization fraction on Tnr temperature is constant, it was possible to plot lnt-1/T dependence (where t is interpass time and T obtained Tnr temperature) and calculate the slopes representing QSRX, i.e. activation energy for static recrystallization. QSRX values were determined for both low carbon Nb and medium carbon V microalloyed steels and previously reported steels. Calculated values are very close and show good agreement with previously published data estimated after employment the traditional procedure.
Keywords:
activation energy / static recrystallization / Tnr temperature
Source:
Metalurgija, 2009, 15, 2, 99-104
Publisher:
  • Savez inženjera metalurgije Srbije, Beograd

ISSN: 0354-6306

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_technorep_1399
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1399
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Radović, Nenad
AU  - Drobnjak, Đorđe
AU  - Raić, Karlo
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1399
AB  - Two microalloyed steels (Nb low carbon and V medium carbon) were tested by means of multistage continuous cooling torsion with aim to evaluate the interpass recrystallization data, by means of Tnr (temperature of no-recrystallization) temperatures. In the region of short interpass intervals, i.e. region where the static recrystallization is governed by the presence of alloying elements in solid solutions, interpass time was varied between 1.8, 2.7, 5 and 10s. Since the recrystallization fraction on Tnr temperature is constant, it was possible to plot lnt-1/T dependence (where t is interpass time and T obtained Tnr temperature) and calculate the slopes representing QSRX, i.e. activation energy for static recrystallization. QSRX values were determined for both low carbon Nb and medium carbon V microalloyed steels and previously reported steels. Calculated values are very close and show good agreement with previously published data estimated after employment the traditional procedure.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metalurgija
T1  - Determination of activation energy for static recrystallization using multipass continuous cooling torsion test
EP  - 104
IS  - 2
SP  - 99
VL  - 15
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1399
ER  - 
@article{
author = "Radović, Nenad and Drobnjak, Đorđe and Raić, Karlo",
year = "2009",
abstract = "Two microalloyed steels (Nb low carbon and V medium carbon) were tested by means of multistage continuous cooling torsion with aim to evaluate the interpass recrystallization data, by means of Tnr (temperature of no-recrystallization) temperatures. In the region of short interpass intervals, i.e. region where the static recrystallization is governed by the presence of alloying elements in solid solutions, interpass time was varied between 1.8, 2.7, 5 and 10s. Since the recrystallization fraction on Tnr temperature is constant, it was possible to plot lnt-1/T dependence (where t is interpass time and T obtained Tnr temperature) and calculate the slopes representing QSRX, i.e. activation energy for static recrystallization. QSRX values were determined for both low carbon Nb and medium carbon V microalloyed steels and previously reported steels. Calculated values are very close and show good agreement with previously published data estimated after employment the traditional procedure.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metalurgija",
title = "Determination of activation energy for static recrystallization using multipass continuous cooling torsion test",
pages = "104-99",
number = "2",
volume = "15",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1399"
}
Radović, N., Drobnjak, Đ.,& Raić, K.. (2009). Determination of activation energy for static recrystallization using multipass continuous cooling torsion test. in Metalurgija
Savez inženjera metalurgije Srbije, Beograd., 15(2), 99-104.
https://hdl.handle.net/21.15107/rcub_technorep_1399
Radović N, Drobnjak Đ, Raić K. Determination of activation energy for static recrystallization using multipass continuous cooling torsion test. in Metalurgija. 2009;15(2):99-104.
https://hdl.handle.net/21.15107/rcub_technorep_1399 .
Radović, Nenad, Drobnjak, Đorđe, Raić, Karlo, "Determination of activation energy for static recrystallization using multipass continuous cooling torsion test" in Metalurgija, 15, no. 2 (2009):99-104,
https://hdl.handle.net/21.15107/rcub_technorep_1399 .

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