INTERNACIONALNI UNIVERZITET TRAVNIK U TRAVNIKU
EKONOMSKI FAKULTET TRAVNIK U TRAVNIKU
PRAVNI FAKULTET TRAVNIK U TRAVNIKU
FAKULTET ZA MEDIJE I KOMUNIKACIJE TRAVNIK U TRAVNIKU
u saradnji sa
MIT UNIVERZITET SKOPLJE, SJEVERNA MAKEDONIJA
VEVU, VELEUČILIŠTE LAVOSLAV RUZIČKA U VUKOVARU, HRVATSKA
VELEUČILIŠTE VIMAL, SISAK, HRVATSKA
CKKPI, TRAVNIK, BOSNA I HERCEGOVINA
organizuju
31. MEĐUNARODNU KONFERENCIJU
EKONOMSKE, PRAVNE I MEDIJSKE INTEGRACIJE BOSNE I HERCEGOVINE I ZEMALJA ZAPADNOG
BALKANA KAO KLJUČNI POKRETAČ EUROPSKIH VRIJEDNOSTI
12. – 13. decembar 2025. godine
Akademija kosovsko metohijska , Leposavić , Serbia
Internacionalni univerzitet Travnik u Travniku , Travnik , Bosnia and Herzegovina
Fakultet tehničkih nauka Kragujevac , Kragujevac , Serbia
Fakultet tehničkih nauka Kragujevac , Kragujevac , Serbia
Vojnotehnički institut Beograd , Beograd , Serbia
Chromium-molybdenum steel group SA 387 Gr. 91 is the latest from the generation of steels designed to operate under high temperature, elevated pressure, and corrosive environments. The most important characteristics of this steel, compared to previously used steels for high-temperature applications, are its high yield strength, good corrosion resistance, significant oxidation resistance, and excellent creep resistance. The latter property enables engineers to design components with significantly thinner walls compared to other types of steels (material savings). In addition to its good mechanical properties at elevated temperatures, weldability is also important for this steel and, in general, for the entire group of such steels. It is crucial that welding does not affect their resistance to corrosion, creep, or their overall mechanical properties, thus extending the remaining lifespan of the structure, which, together with material savings, fits into the concept of sustainable development. This paper will present the characteristics of the behavior of Cr-Mo steels during welding, based on experimental testing (macro and microstructural examination of the welded joint, technological tests – bend testing, hardness testing).
Cr-Mo steels, welding, cracks, micro and macrostructure, hardness, sustainable development
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