Adam Grajcar, Mateusz Morawiec
This paper presents the results of martensite tempering resistance in 4% Mn steel. The material was quenched and tempered at 350 ◦C for 15, 30, and 60 min. The analysis of the quenching and tempering was carried out using dilatometric and microstructural approaches. The phase composition was assessed using X-ray diffraction. The M s temperature and tempering progress were simulated using JMatPro software. The dilatometric analysis revealed a small decrease in the relative change in length (RCL) during tempering. This decrease was connected to the precipitation kinetics of cementite within the martensite laths. The microstructure investigation using a scanning electron microscope showed a very small amount of carbides, even for the longest tempering time. This showed the high tempering resistance of the martensite in medium-Mn steels. The hardness results showed an insignificant decrease in the hardness depending on the tempering time, which confirmed the high tempering resistance of martensite.
@article{972411a5-775b-4285-8ab8-f43bd39bb7e0,
title={Dilatometric and Microstructural Study of Martensite Tempering in 4% Mn Steel},
author={Adam Grajcar and Mateusz Morawiec},
year={2020},
language={English}
}TY - JOUR TI - Dilatometric and Microstructural Study of Martensite Tempering in 4% Mn Steel AU - Adam Grajcar AU - Mateusz Morawiec PY - 2020 LA - English ER -
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