Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 14, Part 5American Society of Mechanical Engineers, 1995 - Arctic regions |
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Page 129
... WELD METAL . Potential ( mV , vs. SCE ) -500 -600 -700 Base material 0.2 % Cr weld metal -800 Corrosion rate ( mm / y ) 2.0 1.5 Corrosion rate ↓ difference BM WM 1.0 0.5 0.1 0.2 0.3 Cr in inside weld metal ( % ) Fig . 10 EFFECT OF ...
... WELD METAL . Potential ( mV , vs. SCE ) -500 -600 -700 Base material 0.2 % Cr weld metal -800 Corrosion rate ( mm / y ) 2.0 1.5 Corrosion rate ↓ difference BM WM 1.0 0.5 0.1 0.2 0.3 Cr in inside weld metal ( % ) Fig . 10 EFFECT OF ...
Page 135
... weld metal- Seam weld HAZ 10 5 0 5 10 15 150 -20 Distance from weld metal centerline ( mm ) Measuring points Field weld 1mm 1 不 BM 2 Seam weld -10 0 257Hv 10 20 Distance from field weld metal centerline ( mm ) Measuring points 2mm 2mm ...
... weld metal- Seam weld HAZ 10 5 0 5 10 15 150 -20 Distance from weld metal centerline ( mm ) Measuring points Field weld 1mm 1 不 BM 2 Seam weld -10 0 257Hv 10 20 Distance from field weld metal centerline ( mm ) Measuring points 2mm 2mm ...
Page 145
... welded joints require a larger crack tip opening displacement ( CTOD ) than matched and overmatched welded joints . Nevertheless , an undermatched weld metal can be utilized during girth welding , provided that it retains sufficient ...
... welded joints require a larger crack tip opening displacement ( CTOD ) than matched and overmatched welded joints . Nevertheless , an undermatched weld metal can be utilized during girth welding , provided that it retains sufficient ...
Contents
ENVIRONMENTAL CONSIDERATIONS | 1 |
GEOTECHNICS I | 65 |
VOLUME IA OFFSHORE TECHNOLOGY VOLUME III MATERIALS ENGINEERING | 125 |
Copyright | |
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analysis applied Arctic ASME assessment axial force backfill behaviour bending bending moment buckling cathodic cathodic protection chromium compressive corrosion rate cost crack criteria CTOD curvature curve defects deformation diameter disbonded displacement effect Engineering equation evaluation factors failure finite element flow free spans geotechnical ground movement hoop stress increase inspection installation integrity interaction joint landslide length LIGHTLY CORROSIVE limit line pipe load localisation material maximum measurements Mechanics method North Sea Norwegian Trench Offshore OMAE operating parameters performed pipe material pipeline Pipeline Technology plastic potential predicted probabilistic reliability resistance risk safety seabed seam weld shear shear strength simulation SINTEF Skaha Lake slope Snamprogetti soil specimen steel strain strength stress Stress Corrosion Cracking surface temperature tensile tests tie-in trench values velocity vortex shedding wall thickness water depth wave weld metal yield strength