Martensite-to-austenite reversion and recrystallization in cryogenically-rolled type 321 metastable austenitic steel

A. Aletdinov, S. Mironov, G. F. Korznikova, T. Konkova, R. G. Zaripova, M. M. Myshlyaev, S. L. Lee Semiatin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The annealing behavior of cryogenically-rolled type 321 metastable austenitic steel was established. Cryogenic deformation gave rise to martensitic transformation which developed preferentially within deformation bands. Subsequent annealing in the range of 600 C to 700 C resulted in reversion of the strain-induced martensite to austenite. At 800 C, the reversion was followed by static recrystallization. At relatively-low temperatures, the reversion was characterized by a very strong variant selection, which led to the restoration of the crystallographic orientation of the coarse parent austenite grains. An increase in the annealing temperature relaxed the variant-selection tendency and provided subsequent recrystallization thus leading to significant grain refinement. Nevertheless, a significant portion of the original coarse grains was
found to be untransformed and therefore the fine-grain structure was fairly heterogeneous.
LanguageEnglish
Pages1346-1357
Number of pages12
JournalMetallurgical and Materials Transactions A
Volume50
Issue number3
Early online date11 Dec 2018
DOIs
Publication statusPublished - 31 Mar 2019

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Austenitic steel
austenite
martensite
Martensite
Austenite
steels
Annealing
annealing
Grain refinement
Crystal microstructure
Martensitic transformations
Cryogenics
Restoration
martensitic transformation
restoration
cryogenics
Temperature
tendencies
austenitic steel
temperature

Keywords

  • cryogenic deformation
  • cryogenically-rolled type 321
  • metastable austenitic steel

Cite this

Aletdinov, A. ; Mironov, S. ; Korznikova, G. F. ; Konkova, T. ; Zaripova, R. G. ; Myshlyaev, M. M. ; Lee Semiatin, S. L. / Martensite-to-austenite reversion and recrystallization in cryogenically-rolled type 321 metastable austenitic steel. In: Metallurgical and Materials Transactions A. 2019 ; Vol. 50, No. 3. pp. 1346-1357.
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abstract = "The annealing behavior of cryogenically-rolled type 321 metastable austenitic steel was established. Cryogenic deformation gave rise to martensitic transformation which developed preferentially within deformation bands. Subsequent annealing in the range of 600 C to 700 C resulted in reversion of the strain-induced martensite to austenite. At 800 C, the reversion was followed by static recrystallization. At relatively-low temperatures, the reversion was characterized by a very strong variant selection, which led to the restoration of the crystallographic orientation of the coarse parent austenite grains. An increase in the annealing temperature relaxed the variant-selection tendency and provided subsequent recrystallization thus leading to significant grain refinement. Nevertheless, a significant portion of the original coarse grains wasfound to be untransformed and therefore the fine-grain structure was fairly heterogeneous.",
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Martensite-to-austenite reversion and recrystallization in cryogenically-rolled type 321 metastable austenitic steel. / Aletdinov, A.; Mironov, S.; Korznikova, G. F.; Konkova, T.; Zaripova, R. G.; Myshlyaev, M. M.; Lee Semiatin, S. L.

In: Metallurgical and Materials Transactions A, Vol. 50, No. 3, 31.03.2019, p. 1346-1357.

Research output: Contribution to journalArticle

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T1 - Martensite-to-austenite reversion and recrystallization in cryogenically-rolled type 321 metastable austenitic steel

AU - Aletdinov, A.

AU - Mironov, S.

AU - Korznikova, G. F.

AU - Konkova, T.

AU - Zaripova, R. G.

AU - Myshlyaev, M. M.

AU - Lee Semiatin, S. L.

PY - 2019/3/31

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N2 - The annealing behavior of cryogenically-rolled type 321 metastable austenitic steel was established. Cryogenic deformation gave rise to martensitic transformation which developed preferentially within deformation bands. Subsequent annealing in the range of 600 C to 700 C resulted in reversion of the strain-induced martensite to austenite. At 800 C, the reversion was followed by static recrystallization. At relatively-low temperatures, the reversion was characterized by a very strong variant selection, which led to the restoration of the crystallographic orientation of the coarse parent austenite grains. An increase in the annealing temperature relaxed the variant-selection tendency and provided subsequent recrystallization thus leading to significant grain refinement. Nevertheless, a significant portion of the original coarse grains wasfound to be untransformed and therefore the fine-grain structure was fairly heterogeneous.

AB - The annealing behavior of cryogenically-rolled type 321 metastable austenitic steel was established. Cryogenic deformation gave rise to martensitic transformation which developed preferentially within deformation bands. Subsequent annealing in the range of 600 C to 700 C resulted in reversion of the strain-induced martensite to austenite. At 800 C, the reversion was followed by static recrystallization. At relatively-low temperatures, the reversion was characterized by a very strong variant selection, which led to the restoration of the crystallographic orientation of the coarse parent austenite grains. An increase in the annealing temperature relaxed the variant-selection tendency and provided subsequent recrystallization thus leading to significant grain refinement. Nevertheless, a significant portion of the original coarse grains wasfound to be untransformed and therefore the fine-grain structure was fairly heterogeneous.

KW - cryogenic deformation

KW - cryogenically-rolled type 321

KW - metastable austenitic steel

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