A5064143950- Welding Techniques and Residual Stresses
- Microstructure and Mechanical Properties of Steels
- Engineering Applied Research
- Hydrogen embrittlement and corrosion behaviors in metals
- Mechanical Failure Analysis and Simulation
- Metal Alloys Wear and Properties
- Fatigue and fracture mechanics
EVRAZ (Canada)
2023-2024
Abstract A high-strength line pipe steel grade, namely API X65, has been developed and qualified for its use under pressurized hydrogen gas following the ASME B31.12 code. The bolt-load compact specimens taken from base metal, heat-affected zone, weld seam of electric resistance welded (ERW) pipes were tested using a constant displacement method in 100% at pressure up to 13.8 MPa (2000 psi) 1000 hours. All fracture toughness testing was conducted RINA Consulting – Centro Sviluppo Materiali...
The microstructure and crystallographic textures of API X65 grade linepipe steel were studied in the base metal, weld interface after high-frequency electric resistance welding (HF-ERW), following post-weld heat treatment (PWHT). Optical microscopy, scanning electron microscopy (SEM), electron-backscattered diffraction (EBSD) used to study texture evolution correlated with Charpy V-notch impact toughness. values 172.9 ± 5.2 J for 7.5 1.6 as-welded interface, 69 24 PWHT, latter still...