ISSN 2594-5327
49º Congresso anual — Vol. 49, Num. 1 (1994)
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Resumo
The results of experimental investigations are presented, which demonstrate that in certain range of supercooling the dynamic of the austenite-to-ferrite transition is essentially multi-stage. Ferrite grains of the first generation are nucleated on the austenite grain boundaries. The second and following ferrite grains generations are originated on the Feγ/Feα interphase. It was shown that plastic deformation at the temperatures below Ar₃ increases the rate of Feγ→Feα transition significantly. The conversion degree may essentially exceed the thermodynamically balanced value. Data are presented on the plastic deformation influence on the kinetics of Feγ→Feα transition. It was demonstrated that pulse deformation is an effective method for the polymorphous transformation acceleration.
Palavras-chave
austenite, ferrite, carbon steel, phase transformation, plastic deformation
Como citar
Urtsev, V.; Morozov, A.; Gornostyrev, Yu.; Zalalutdinov, M.; Kaptsan, A..
THE FEATURES OF AUSTENITE TO FERRITE TRANSFORMATION FOR CARBON STEELS,
p. 251-258.
In: 49º Congresso anual,
Rio de Janeiro, Brasil,
1994.
ISSN: 2594-5327, DOI 10.5151/2594-5327-49v1-251-258