Original scientific paper

Dilatometric analysis of cooling curves for high strength steel X155CrMoV12

M. Krbaťa orcid.org/0000-0002-0520-8180 ; Faculty of Special Technology TnUAD Trenčín, Slovak Republic
J. Majerik ; Faculty of Special Technology TnUAD Trenčín, Slovak Republic
I. Barenyi orcid.org/0000-0002-9296-600X ; Faculty of Special Technology TnUAD Trenčín, Slovak Republic
M. Eckert ; Faculty of Special Technology TnUAD Trenčín, Slovak Republic
R. Čep orcid.org/0000-0001-9610-4215 ; Faculty of Mechanical Engineering VSBTU Ostrava, Czech Republic
J. Sedlak ; Faculty of Mechanical Engineering FSI VUT Brno, Czech Republic
I. Samardžić ; University of Slavonski Brod, Croatia

Abstract

The article deals with phase transformations and austenitizing behavior of the X155CrMoV12 tool steel. Dilatation analyses of a series of samples were performed at various cooling rates, chosen in the range from 10 °C/s to 0,1°C/s. Acquired experimental data were used for evaluation of dilatometric curves in order to map the temperature ranges of phase transformations of the austenite to pearlite, bainite or martensite. All experimental samples from dilatometric analyses were then subjected to microstructural analyses and hardness measurements to characterize the microstructure and hardness for each tested heat treatment regime.

Keywords

dilatometry; X155CrMoV12; temperature; cooling rate; martensite

Hrčak ID:

262416

URI

https://hrcak.srce.hr/262416

Publication date:

3.1.2022.

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