Tempering of deformed and as-quenched martensite in structural steel

Annealing of deformed martensite (high-temperature tempering) in St37 steel was studied. Different reductions in thickness were considered and compared with the behavior of as-quenched martensite during tempering. tempering of the asquenched martensite was accompanied by the formation of carbide par...

Full description

Saved in:
Bibliographic Details
Main Authors: Najafi M., Mirzadeh H., Alibeyki M.
Format: Article
Language:English
Published: University of Belgrade, Technical Faculty, Bor 2019-01-01
Series:Journal of Mining and Metallurgy. Section B: Metallurgy
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1450-5339/2019/1450-53391900002N.pdf
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832574007712415744
author Najafi M.
Mirzadeh H.
Alibeyki M.
author_facet Najafi M.
Mirzadeh H.
Alibeyki M.
author_sort Najafi M.
collection DOAJ
description Annealing of deformed martensite (high-temperature tempering) in St37 steel was studied. Different reductions in thickness were considered and compared with the behavior of as-quenched martensite during tempering. tempering of the asquenched martensite was accompanied by the formation of carbide particles, incomplete disappearance of the lath martensite morphology, and continuous decrease in hardness until reaching low values. However, during tempering of the cold rolled martensite, the precipitation of carbides in the lamellar structure, development of distinct equiaxed ultrafine grains through a continuous recrystallization mechanism, and a sudden hardness drop were characterized. The importance of cold rolling reduction and its amount were also discussed.
format Article
id doaj-art-ec182a5fd9054ef199b4c9fd52f456fb
institution Kabale University
issn 1450-5339
2217-7175
language English
publishDate 2019-01-01
publisher University of Belgrade, Technical Faculty, Bor
record_format Article
series Journal of Mining and Metallurgy. Section B: Metallurgy
spelling doaj-art-ec182a5fd9054ef199b4c9fd52f456fb2025-02-02T01:53:06ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752019-01-01551959910.2298/JMMB180813002N1450-53391900002NTempering of deformed and as-quenched martensite in structural steelNajafi M.0Mirzadeh H.1Alibeyki M.2University of Tehran, College of Engineering, School of Metallurgy and Materials Engineering, Tehran, IranUniversity of Tehran, College of Engineering, School of Metallurgy and Materials Engineering, Tehran, IranUniversity of Tehran, College of Engineering, School of Metallurgy and Materials Engineering, Tehran, IranAnnealing of deformed martensite (high-temperature tempering) in St37 steel was studied. Different reductions in thickness were considered and compared with the behavior of as-quenched martensite during tempering. tempering of the asquenched martensite was accompanied by the formation of carbide particles, incomplete disappearance of the lath martensite morphology, and continuous decrease in hardness until reaching low values. However, during tempering of the cold rolled martensite, the precipitation of carbides in the lamellar structure, development of distinct equiaxed ultrafine grains through a continuous recrystallization mechanism, and a sudden hardness drop were characterized. The importance of cold rolling reduction and its amount were also discussed.http://www.doiserbia.nb.rs/img/doi/1450-5339/2019/1450-53391900002N.pdflow carbon steelsquench and temperingcold rollingcontinuous recrystallizationhardness
spellingShingle Najafi M.
Mirzadeh H.
Alibeyki M.
Tempering of deformed and as-quenched martensite in structural steel
Journal of Mining and Metallurgy. Section B: Metallurgy
low carbon steels
quench and tempering
cold rolling
continuous recrystallization
hardness
title Tempering of deformed and as-quenched martensite in structural steel
title_full Tempering of deformed and as-quenched martensite in structural steel
title_fullStr Tempering of deformed and as-quenched martensite in structural steel
title_full_unstemmed Tempering of deformed and as-quenched martensite in structural steel
title_short Tempering of deformed and as-quenched martensite in structural steel
title_sort tempering of deformed and as quenched martensite in structural steel
topic low carbon steels
quench and tempering
cold rolling
continuous recrystallization
hardness
url http://www.doiserbia.nb.rs/img/doi/1450-5339/2019/1450-53391900002N.pdf
work_keys_str_mv AT najafim temperingofdeformedandasquenchedmartensiteinstructuralsteel
AT mirzadehh temperingofdeformedandasquenchedmartensiteinstructuralsteel
AT alibeykim temperingofdeformedandasquenchedmartensiteinstructuralsteel