Determination of activation energy for static recrystallization using multipass continuous cooling torsion test
Апстракт
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.
Кључне речи:
activation energy / static recrystallization / Tnr temperatureИзвор:
Metalurgija, 2009, 15, 2, 99-104Издавач:
- Savez inženjera metalurgije Srbije, Beograd
Институција/група
Tehnološko-metalurški fakultetTY - 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 .