N2 - 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.
JO - Archives of Metallurgy and Materials
L1 - http://www.czasopisma.pan.pl/Content/106701/PDF/AMM-2018-2-47-Kawulok.pdf
L2 - http://www.czasopisma.pan.pl/Content/106701
IS - No 2
KW - Steel 27MnCrB5
KW - continuous cooling transformations diagrams
KW - dilatometric tests
KW - plastometer Gleeble 3800
KW - software QTSteel
ER -
A1 - Kawulok, R.
A1 - Opěla, P.
A1 - Schindler, I.
A1 - Kawulok, P.
A1 - Mizera, J.
A1 - Rusz, S.
A1 - Olszar, M.
A1 - Čmiel, K.M.
PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences
PB - Commitee on Metallurgy of Polish Academy of Sciences
VL - vol. 63
JF - Archives of Metallurgy and Materials
T1 - The Influence of a Cooling Rate on the Evolution of Microstructure and Hardness of the Steel 27MnCrB5
UR - http://www.czasopisma.pan.pl/dlibra/docmetadata?id=106701
DOI - 10.24425/122421