Vol.25, No.1, 2025, pp. 7–10
https://doi.org/10.69644/ivk-2025-01-0007  

TEMPERATURE AND STRESS CONCENTRATION EFFECTS ON CRACK INITIATION AND PROPAGATION ENERGIES OF A DUPLEX STEEL WELDMENTS

Aleksandar Sedmak1* , Srđa Perković2 , Zijah Burzić2 , Srdjan Tadić3 ,

Nikola Milovanovic3

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

*email: aleksandarsedmak@gmail.com 

2) Military Technical Institute, Belgrade, SERBIA

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

 

Abstract

This paper presents the effect of temperature on values of energies for crack initiation and propagation for three zones of the welded joint using Charpy specimens, both standard, and those with additional cracks, to follow also the effect of stress concentration. Welded joints of the super duplex steel UNS S32750 made by gas tungsten arc welding process are used in this investigation.

Keywords: • crack initiation and propagation energy • duplex steel UNS S32750 • temperature effects • stress concentration effects  

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