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The paper presents the results of the effect of isothermal heating time on the disappearance of strain hardening (the softening degree) of the studied high-manganese TRIPLEX type steels at a temperature of 900 and 1000°C. In order to determine the kinetics of recrystallization of austenite plastically deformed for selected steels, hot compression tests with draft ε = 0.2 were made. The presented results reveal that the complete recrystallization of austenite needs long isothermal heating times. In industrial conditions, such long times are not used, therefore in the initial rolling passages, the time required for half recrystallization of austenite t0.5 is often used. The total disappearance of the strain hardening, completion of the recrystallization of austenite tested high-manganese X98 and X105 TRIPLEX type steels isothermal heating time requires far more than 200 s. The increase of the deformation temperature is a factor influencing the acceleration of the disappearance of strain hardening.
Wydawca
Czasopismo
Rocznik
Tom
Strony
2023--2030
Opis fizyczny
Bibliogr. 30 poz., fot., rys., tab., wykr.
Twórcy
autor
- Silesian University of Technology, Institute of Engineering Materials and Biomaterials, 18a Konarskiego Str., 44 100 Gliwice, Poland
autor
- Silesian University of Technology, Institute of Engineering Materials and Biomaterials, 18a Konarskiego Str., 44 100 Gliwice, Poland
autor
- Silesian University of Technology, Institute of Engineering Materials and Biomaterials, 18a Konarskiego Str., 44 100 Gliwice, Poland
Bibliografia
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Uwagi
EN
Scientific work was financed in the framework of project funded by the National Science Centre based on the decision number DEC-2012/05/B/ST8/00149. Liwia Sozańska-Jędrasik is a scholarship holder of the Visegrad International Scholarship Grant for the period September 2017 to July 2018. so some of the research was conducted in collaboration with Ing. Martin Kraus from VŠB- Technical University of Ostrava in the Czech Republic. This publication was financed by the Ministry of Science and Higher Education of Poland as the statutory financial grant of the Faculty of Mechanical Engineering SUT.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-fed79842-c8c1-4063-a757-4010f57208f2