Issue 41

G. G. Cunto et alii, Frattura ed Integrità Strutturale, 41 (2017) 332-338; DOI: 10.3221/IGF-ESIS.41.44 336 Figure 1: Typical Stress x Strain curves for different zones in the welded pipe. Pipe Zone Specimen Orientation σ 0 [MPa] σ R [MPa] σ f [MPa] Elong. [%] Ramberg-Osgood α n Base Material AISI 316LN BM1 Longitudinal 166 483 325 30.7 8.0 3.4 BM2 Longitudinal 167 481 324 30.1 7.7 3.4 BM3 Longitudinal 149 458 303 31.8 8.7 3.2 BM4 Transverse 167 459 313 30.1 8.2 3.5 BM5 Transverse 177 473 325 31.8 7.3 3.7 BM6 Transverse 175 476 326 32.2 7.4 3.7 Weld AISI 316L WM1 Longitudinal 360 463 412 9.0 1.3 9.9 WM2 Longitudinal 358 454 406 11.7 1.2 9.2 WM3 Longitudinal 354 455 405 16.7 1.3 11.4 HAZ HZ1 Longitudinal 249 495 372 17.2 2.7 5.4 HZ2 Longitudinal 249 486 368 14.7 2.4 5.5 HZ3 Longitudinal 265 481 373 13.8 2.0 6.2 Table 2: Results of hot tensile tests. Figure 2: Typical J-R curves for different zones in the welded Pipe.