PSI - Issue 72

Nedeljko Vukojević et al. / Procedia Structural Integrity 72 (2025) 157 –163

163

 The test results of the HAZ are relevant for the further exploitation of the tested samples. Relatively low resistance to the appearance of cracks, i.e. increased tendency to brittle fracture may be an acceptance criterion for use at lower temperatures. In general, the HAZ of both tested samples has poor crack resistance. Better mechanical properties were obtained in the HAZ of steel P460, which justifies its use and substitution of steel S235 in the production of welded pressure vessel dish ends. References Matsubara, S., 1994. Incremental backward bulge forming of a sheet metal with a hemispherical head tool. Journal of the Japan Society for Technology of Plasticity Vol. 35, 1311-1316 Iseki, H., Kumon, H., 1994. Forming limit of incremental sheet metal stretch forming using spherical rollers. Journal of the Japan Society for Technology of Plasticity Vol. 35, 1336-1341 Michael B. Prime, 1999. Residual stress measurement by successive extension of a slot: The crack compliance method. Applied Mechanics Reviews Vol. 52, No. 2 75-96 Singh, R.P., Kumar, S., Singh, P.K., Meraz, M., Srivastwa, A.K., Salunkhe, S., Hussein, H.M.A., Nasr, E.S.A., Kamrani, A., 2023. A Mathematical Model for Force Prediction in Single Point Incremental Sheet Forming with Validation by Experiments and Simulation. Processes, 11, 1688. https://doi.org/10.3390/pr11061688 Vukojević, N., Ištvanić, Z., Hadžikadunić,F., Bajtarević - Jeleč, A., 2024. Influence Of Incremental Sheet Forming And PWHT On The Structural Integrity Of Vessel Heads Made Of Steel P355NL2+H. https://doi.org/10.69644/ivk-2024-01-0021. Journal Structural Integrity And Life, Vol.24, No.1, 21 – 27 Tizsa, M., 2012. General overview of sheet incremental forming. Journal of advancement in Material and manufacturing engineering, Vol. 55, Issue 1 Shakir Gatea, Hengan Ou, Graham McCartney, 2016. Review on the influence of process parameters in incremental sheet forming. Int. Journal Advance Manufacturing Technologies 87:4. doi 10.1007/s00170-016-8426-6 Vukojević, D., Vukojević, N., Lemeš, S., Ištvanić, Z., 2007. Analysis of Tool Radius on Vessel Head Quality Made by Increment al Plastic Deformation. 11th International Research/Expert Conference Trends in the Development of Machinery and Associated Technology TMT 2007. Conference Proceedings, 87-90 Vukojević, D., Vukojević, N., Hadžikadunić, F., Ištvanić, Z., 2007. Some Aspects of Spherical Vessel Head Quality made by Inc remental Deformation Treatment. 5th Research/expert Conference with international participation Quality 2007. Conference Proceedings, 299-304 Ištvanić, Z., 2022. Contribution to the Assessment of Integrity of Cylindrical Dish Ends Made by the Incremental Sheet Metal Forming. Dissertation Thesis, University of Zenica. B&H EN ISO 4063, 2009. Welding and allied processes - Nomenclature of processes and reference numbers (ISO 4063:2009, Corrected version 2010-03-01; EN ISO 4063:2010) EN1417, 2002. Welding consumables — Wire electrodes and wire-flux combinations for submerged arc welding of non alloy and fine grain steels — Classification BAS EN ISO 4136, 2014. Destructive tests on welds in metallic materials — Transverse tensile test. BAS EN ISO 6892-1, 2017. Metallic materials — Tensile testing — Part 1: Method of test at room temperature. BAS EN ISO 9016, 2012. Destructive tests on welds in metallic materials — Impact tests — Test specimen location, notch orientation and examination.

ISO 148-1, 2017. Metallic materials — Charpy pendulum impact test — Part 1: Test method BAS EN ISO 6507-1, 2018. Metallic materials — Vickers hardness test — Part 1: Test method ASTM 837, 2020. Standard Test Method for Determining Residual Stresses by the Hole-Drilling Strain-Gage Method ASTM E340-00, 2006. Standard Practice for Macroetching Metals and Alloys AD Merkblatt B0, 2003. Berehnung von Druckbehalter, Deutsches Institut für Normung e.V. ASTM E 399, 2022. Standard test method for linear – elastic plane-strain fracture toughness of metallic materials ASTM E1820. 2018. Standard test method for measurement of fracture toughness. Plane stress/Plane strain