PSI - Issue 60

Varsha Florist et al. / Procedia Structural Integrity 60 (2024) 614–630 627 14 Varsha Florist, Santhoshkumar R, A. Vamsi, Sajju V, Sarath Mohan, Sanjeev Kumar, Dhanoop A, Venukuttan C, M.K. Sundaresan, SVS Narayana Murty / Structural Integrity Procedia 00 (2024) 000 – 000

Figure 17 shows the comparison of tensile data between parent material and weld properties of tanks. The test results are found within the specification, except lower % elongation noticed in some parent metal specimens AseerBrabin (2011).

Fig. 16. Tensile test results of flow formed shells in solution treated + flow formed to 10mm+solution treated + flow formed to 4.2mm + H1025 material condition for a) longitudinal direction; b) transverse direction.

Fig. 17. Mechanical properties of weld (Flow formed to 10mm + Solution treated + Flow formed to 4.2 mm + Cirseam weld + H1025) &Parent material (Flow formed to 10mm + Solution treated + Flow formed to 4.2 mm + H1025). Specimens from qualification tank in longitudinal direction. The microstructure observed in Fig. 18 for the specimens sectioned both from circumference and longitudinal fracture edge is martensitic which is typical of the material.