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Ispitivanja zavarenih spojeva niskolegiranog čelika povišene čvrstoće klase 700 MPa
(DUZS - Društvo za unapreñivanje zavarivanja u Srbiji, 2023)
Zahtevi ekonomične potrošnje energije i sirovina upućuju proizvođače čelika na proizvodnju zavarljivih čelika povišene čvrstoće, a projektante i konstruktore na njihovu primenu u zavarenim konstrukcijama. Primena niskolegiranih ...
Welded Joints Integrity of the Pressure Vessels Pipes Made of Hot Rolled Fine-Grained Steel
(Savez energetičara, 2021)
This paper contains results of tests performed in order
to determine mechanical properties of steel P460NL1, meant for
production of pressure vessels. Arc welding of samples from
which the specimens were taken was carried ...
Effect of temperature and specimen orientation on Charpy impact toughness
(Elsevier, 2022)
Steel grade 14MoV6 3 is used for manufacturing of boilers and steam pipelines designed for steam temperatures up to 560°C. This paper presents the experimental analysis which included impact toughness test. The analysis ...
Lamellar Tearing of Parent Material and Degradation of Welded Joints at Vital Welded Structures
(Savez energetičara, 2021)
Vertical Kaplan turbines, manufactured in Russia, are
installed in 6 hydroelectric generating units at ‘Djerdap 1’, with
nominal power of 176 MW each. Because of the structural
solution and inability of performing ...
Experimental Determination of the Critical Value of the J-Integral that Refers to the HSLA Steel Welded Joint
(Strojarski Facultet, 2023)
Fracture mechanics, as a scientific discipline dealing with the study of cracks in welded structures, has defined parameters and introduced new test methods in order to better determine the tendency to crack growth, critical ...
Influence of Temperature on Impact Toughness of HSLA Steels
(Structural Integrity and Life, Special Issue, 2023)
The aim of this paper is to present the influence of differ-ent temperatures on the impact toughness of welded joint of high strength low-alloy steel. The results of impact tests for all three constituents of the manual ...
Occurrence of cracks due to inadequate turbine shaft construction
(Proceedings of the 16th International Conference on Accomplishments in Mechanical and Industrial Engineering -DEMI 2023, 2023)
After several decades of constant exploitation of the horizontal bulb turbine, which is an integral
part of the hydroelectric power unit, empirically, the formation of a crack occurs in the turbine shaft
due to the ...
Repair of shaft and ventilation ring vanes damages of the generator of the hydroelectric generating set at the hydro power plant
(Savez energetičara, 2020)
Hydro power plant ’Pirot’, which was built in 1990, is
an accumulation-derivative power plant, which consists of 2
above-ground vertical hydroelectric generating sets that contain
Francis turbines with nominal power of ...
Strength of the Welded Joint with Improved Mechanical Properties of Weld Metal and Heat Affected Zone
(Faculty of Mechanical and Civil Engineering in Kraljevo, Serbia, 2021)
Selection of steel, dimensions and fabrication technology for the welded structure are all parts of the design
process, because they are in close connection with the function of the structural whole under certain conditions ...
Damages That Occur at Vital Components of the Thermal Power Plant System Detected by NDT Testing
(Međunarodno savetovanje Energetika, Zlatibor, 2022)
Continuous exploitation in very harsh environmental conditions can lead to relatively frequent damages of steam line system. High place among the causes of these damages takes inadequate exploitation and maintenance. This ...