The Influence of a Cooling Rate on the Evolution of Microstructure and Hardness of the Steel 27MnCrB5

• Autorzy: Kawulok P. , Schindler I. , Mizera J. , Kawulok R. , Rusz S. , Opěla P. , Olszar M. , Čmiel K. M.

Identyfikatory

DOI

10.24425/122421

• Języki publikacji: EN

Abstrakty

EN

The aim of the performed experiments was to determine the influence of a cooling rate on the evolution of microstructure and hardness of the steel 27MnCrB5. By using dilatometric tests performed on the plastometer Gleeble 3800 and by using mathematical modelling in the software QTSteel a continuous cooling transformation diagram for a heating temperature of 850°C was constructed. Conformity of diagrams constructed for both methods is relatively good, except for the position and shape of the ferrite nose. The values of hardness, temperatures of phase transformations and the volume fractions of structural phases upon cooling from the temperature of 850°C at the rate from 0.16°C · s^-1 to 37.2°C · s^-1 were determined. Mathematically predicted proportion of martensite with real data was of relatively solid conformity, but the hardness values evaluated by mathematical modelling was always higher.

Słowa kluczowe

EN

steel 27MnCrB5; continuous cooling transformation diagrams; dilatometric tests; plastometer Gleeble 3800; software QTSteel

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2018
• Tom: Vol. 63, iss. 2
• Strony: 907--914
• Opis fizyczny: Bibliogr. 25 poz., fot., rys., tab., wykr.

Twórcy

autor

Kawulok P.

• VSB-Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, 17. Listopadu 15/2172, 708 33 Ostrava–Poruba, Czech Republic

autor

Schindler I.

• VSB-Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, 17. Listopadu 15/2172, 708 33 Ostrava–Poruba, Czech Republic

autor

Mizera J.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, Pl. Politechniki 1, 00-661 Warsaw, Poland

autor

Kawulok R.

• VSB-Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, 17. Listopadu 15/2172, 708 33 Ostrava–Poruba, Czech Republic

autor

Rusz S.

• VSB-Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, 17. Listopadu 15/2172, 708 33 Ostrava–Poruba, Czech Republic

autor

Opěla P.

• VSB-Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, 17. Listopadu 15/2172, 708 33 Ostrava–Poruba, Czech Republic

autor

Olszar M.

• Třinecké Železárny, A. S., Průmyslová 1000, 739 61 Třinec, Czech Republic

autor

Čmiel K. M.

• Třinecké Železárny, A. S., Průmyslová 1000, 739 61 Třinec, Czech Republic

Bibliografia

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Uwagi

EN

1. This paper was created at the Faculty of Metallurgy and Materials Engineering within the Project No. LO1203 “Regional Materials Science and Technology Centre - Feasibility Program” funded by the Ministry of Education, Youth and Sports of the Czech Republic; and within the students’ grant project SP2016/66 supported at the VŠB–TU Ostrava by the Ministry of Education of the Czech Republic.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).