Original scientific paper

Thermal and phase transformations analysis in a PREMOMET® steel

M. Torres-López ; University Autonomous of Nuevo Leon
L. Guerra-Fuentes ; University Autonomous of Nuevo Leon
L. Y. Gomez-Zamorano ; University Autonomous of Nuevo Leon
M. A. L. Hernandez-Rodriguez ; University Autonomous of Nuevo Leon
E. Garcia-Sanchez ; University Autonomous of Nuevo Leon

Abstract

Thermal analysis in a PREMOMET® steel has been performed by differential scanning calorimetry (DSC) and highresolution dilatometry. The phase transformation temperatures (Ac₁, Ac₃, M_s and M_f) of this steel were obtained by the two methods at different heating rates showing good agreement between both techniques. The enthalpy of α-γ transformation for this steel was measured using the thermograms acquired by DSC and microstructure was analyzed by scanning electron microscope (SEM). The results showed that this steel retained a martensitic structure for all conditions.

Keywords

martensitic steel; phase transformation; DSC; dilatometry; microstructure

Hrčak ID:

168887

URI

https://hrcak.srce.hr/168887

Publication date:

2.1.2017.

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