Determination of non-recrystallization temperature for niobium microalloyed steel
In the present investigation, the non-recrystallization temperature (TNR) of niobium-micro alloyed steel is determined to plan rolling schedules for obtaining the desired properties of steel. The value of TNR is based on both alloying elements and deformation parameters. In the literature, TNR equat...
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my.iium.irep.898992021-06-10T00:19:51Z http://irep.iium.edu.my/89899/ Determination of non-recrystallization temperature for niobium microalloyed steel Akhtar, Mohammad Nishat Khan Mohammed, Muneer Khan, Sher Afghan Afzal, Asif Subbiah, Ram Sheikh, Nazeer Ahmed Husain, Murtuja Butt, Mohammad Mursaleen Othman, Abdul Rahim Elmi, Abu Bakar TS200 Metal manufactures. Metalworking In the present investigation, the non-recrystallization temperature (TNR) of niobium-micro alloyed steel is determined to plan rolling schedules for obtaining the desired properties of steel. The value of TNR is based on both alloying elements and deformation parameters. In the literature, TNR equations have been developed and utilized. However, each equation has certain limitations which constrain its applicability. This study was completed using laboratory-grade low-carbon Nbmicroalloyed steels designed to meet the API X-70 specification. Nbmicroalloyed steel is processed by the melting and casting process, and the composition is found by optical emission spectroscopy (OES). Multiple-hit deformation tests were carried out on a Gleeble® 3500 system in the standard pocket-jaw configuration to determine TNR. Cuboidal specimens (10 (L) * 20 (W) *20 (T) mm3) were taken for compression test (multiple-hit deformation tests) in gleeble. Microstructure evolutions were carried out by using OM (optical microscopy) and SEM (scanning electron microscopy). The value of TNR determined for 0.1 wt.% niobium bearing micro-alloyed steel is ~ 951 �C. Nb- micro-alloyed steel rolled at TNR produce partially recrystallized grain with ferrite nucleation. Hence, to verify the TNR value, a rolling process is applied with the finishing rolling temperature near TNR (~951 �C). The microstructure is also revealed in the pancake shape, which confirms TNR. MDPI 2021-05-18 Article PeerReviewed application/pdf en http://irep.iium.edu.my/89899/7/89899_Determination%20of%20non-recrystallization%20temperature%20for%20niobium%20microalloyed%20steel.pdf application/pdf en http://irep.iium.edu.my/89899/13/89899_Determination%20of%20non-recrystallization%20temperature_SCOPUS.pdf Akhtar, Mohammad Nishat and Khan Mohammed, Muneer and Khan, Sher Afghan and Afzal, Asif and Subbiah, Ram and Sheikh, Nazeer Ahmed and Husain, Murtuja and Butt, Mohammad Mursaleen and Othman, Abdul Rahim and Elmi, Abu Bakar (2021) Determination of non-recrystallization temperature for niobium microalloyed steel. Materials, 14 (10). pp. 1-14. ISSN 1996-1944 https://www.mdpi.com/journal/materials 10.3390/ma14102639 |
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TS200 Metal manufactures. Metalworking Akhtar, Mohammad Nishat Khan Mohammed, Muneer Khan, Sher Afghan Afzal, Asif Subbiah, Ram Sheikh, Nazeer Ahmed Husain, Murtuja Butt, Mohammad Mursaleen Othman, Abdul Rahim Elmi, Abu Bakar Determination of non-recrystallization temperature for niobium microalloyed steel |
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In the present investigation, the non-recrystallization temperature (TNR) of niobium-micro alloyed steel is determined to plan rolling schedules for obtaining the desired properties of steel. The value of TNR is based on both alloying elements and deformation parameters. In the literature, TNR equations have been developed and utilized. However, each equation has certain limitations which constrain its applicability. This study was completed using laboratory-grade low-carbon Nbmicroalloyed steels designed to meet the API X-70 specification. Nbmicroalloyed steel is processed by the melting and casting process, and the composition is found by optical emission spectroscopy
(OES). Multiple-hit deformation tests were carried out on a Gleeble® 3500 system in the standard pocket-jaw configuration to determine TNR. Cuboidal specimens (10 (L) * 20 (W) *20 (T) mm3) were taken for compression test (multiple-hit deformation tests) in gleeble. Microstructure evolutions were carried out by using OM (optical microscopy) and SEM (scanning electron microscopy). The value of
TNR determined for 0.1 wt.% niobium bearing micro-alloyed steel is ~ 951 �C. Nb- micro-alloyed steel rolled at TNR produce partially recrystallized grain with ferrite nucleation. Hence, to verify the TNR value, a rolling process is applied with the finishing rolling temperature near TNR (~951 �C). The microstructure is also revealed in the pancake shape, which confirms TNR. |
format |
Article |
author |
Akhtar, Mohammad Nishat Khan Mohammed, Muneer Khan, Sher Afghan Afzal, Asif Subbiah, Ram Sheikh, Nazeer Ahmed Husain, Murtuja Butt, Mohammad Mursaleen Othman, Abdul Rahim Elmi, Abu Bakar |
author_facet |
Akhtar, Mohammad Nishat Khan Mohammed, Muneer Khan, Sher Afghan Afzal, Asif Subbiah, Ram Sheikh, Nazeer Ahmed Husain, Murtuja Butt, Mohammad Mursaleen Othman, Abdul Rahim Elmi, Abu Bakar |
author_sort |
Akhtar, Mohammad Nishat |
title |
Determination of non-recrystallization temperature for niobium microalloyed steel |
title_short |
Determination of non-recrystallization temperature for niobium microalloyed steel |
title_full |
Determination of non-recrystallization temperature for niobium microalloyed steel |
title_fullStr |
Determination of non-recrystallization temperature for niobium microalloyed steel |
title_full_unstemmed |
Determination of non-recrystallization temperature for niobium microalloyed steel |
title_sort |
determination of non-recrystallization temperature for niobium microalloyed steel |
publisher |
MDPI |
publishDate |
2021 |
url |
http://irep.iium.edu.my/89899/7/89899_Determination%20of%20non-recrystallization%20temperature%20for%20niobium%20microalloyed%20steel.pdf http://irep.iium.edu.my/89899/13/89899_Determination%20of%20non-recrystallization%20temperature_SCOPUS.pdf http://irep.iium.edu.my/89899/ https://www.mdpi.com/journal/materials |
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1702169452186959872 |
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13.18916 |