PSI - Issue 48

Bojana Zečević et al. / Procedia Structural Integrity 48 (2023) 296 – 301 Zečević et al / Structural Integrity Procedia 00 (2019) 000 – 000

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Fatigue crack growth parameters are the basis for assessing the safety of the operation of structural elements containing a crack that will not lead to failure in the time period between two consecutive inspections. A comparison of the fatigue crack growth rate at room and operating temperatures shows that the fatigue crack growth rate of chrome-molybdenum alloyed steel of the new generation additionally alloyed with vanadium for high temperatures application increases with increasing operating temperature. Acknowledgements This work was supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia (451-03-47/2023-01/200287). References [1] ESIS Procedure for Determing the Fracture Behaviour of Materials ESIS P2-92. [2] ASTM E647-15e1: Standard Test Method for Measurement of Fatigue Crack Growth Rates. [3] Ljubica Milović, Tomaž Vuherer, Zoran Radaković, Blagoj Petrovski, Miodrag Janković, Milorad Zrilić, Darko Daničić: Determination of fatigue crack growth parameters in welded joint of HSLA steel, Structural integrity and life, Vol. 11, No.3, 2011, str. 183-187. [4] P.C. Paris et al, Critical analysis of crack propagation. Journal of Basic Engineering 1963; 85: 528-534. [5] I Čamagić et al, Primena mehanike loma u određivanju parametara rasta zamorne prsline za karakteristiĉne oblasti zavarenog sp oja. Zavarivanje i Zavarene Konstrukcije, 3, 97-103, 2008. [6] M. Jovanović, I. Čamagić, S.A. Sedmak, P. Živković, A. Sedmak ,Crack Initiation and Propagation Resistance of HSLA Steel Welded Joint Constituents, Structural integrity and life, Vol. 20, No.1, 2020, pp. 11 – 14 [7] I. Čamagić, S. Sedmak, A. Sedmak, Z. Burzić, A. Todić , Impact of Temperature and Exploitation Time on Plane Strain Fracture Toughness, K Ic , in a Welded Joint, Structural integrity and life, Vol.17, No.3, 2017, pp.239 – 244 [8] Jovanović, M., Čamagić, I., Sedmak, S., Sedmak, A., & Burzić, Z. (2022). The effect of material heterogeneity and temperature on impact toughness and fracture resistance of SA-387 gr. 91 welded joints. Materials, 15(5) doi:10.3390/ma15051854 [9] Čamagić, I., Jović, S., Radojković, M., et al. (2016), Influence of temperature and exploitation period on the behaviour of a welded joint subjected to impact loading, Struct. Integ. And Life, 16(3): 179-185. [10 ] Bojana V. Zečević, Effect of operating temperature on the resistance of low carbon microalloyed steel for thermal power plants to crack initiation and growth, Doctoral dissertation (IN Serbian), University of Belgrade, Faculty of Technology and Metallurgy, Belgrade, 2022.