Vol.25, No.1, 2025, pp. 11–14
https://doi.org/10.69644/ivk-2025-01-0011

INFLUENCE OF CHEMICAL COMPOSITION AND HEAT TREATMENT ON HARDNESS AND STRENGTH OF A HADFIELD STEEL

Aleksandar Vukosavljević1, Aleksandar Sedmak*2 , Srđan Tadić3 ,

Ljubica Radović4 , Nenad Radović5

1) PhD student, University of Belgrade, Faculty of Technology and Metallurgy, Belgrade, SERBIA

2) University of Belgrade, Faculty of Mechanical Engineering, Belgrade, SERBIA

A. Sedmak https://orcid.org/0000-0002-5438-1895 , *email: aleksandarsedmak@gmail.com ;

3) Innovation Center of the Faculty of Mechanical Engineering, Belgrade, SERBIA

S. Tadić https://orcid.org/0000-0002-7958-9641

4) Military Technical Institute, Belgrade, SERBIA  Lj. Radović https://orcid.org/0000-0002-5204-983X 

5) University of Belgrade, Faculty of Technology and Metallurgy, Belgrade, SERBIA

N. Radović https://orcid.org/0000-0002-9521-6159 

 

Abstract

In this paper the effect of composition and heat treatment on strength and hardness of Hadfield steel is investigated. Two different compositions of Mn12 and Mn16 steels are used with two different heat treatments: water quenching and water quenching with additional aging. Hardness, tensile strength and microstructure are analysed in 8 samples used in this research. It is concluded that effects of composition and heat treatment reflect through the microstructure in complexity. The investigation shows that these effects are much more pronounced in hardness than in the strength.

Keywords: • microstructure • Hadfield steel • hardness • tensile properties  

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