Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 14, Part 3American Society of Mechanical Engineers, 1995 - Arctic regions |
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Page 151
... hydrogen that results from applying cathodic protection ( CP ) to control corrosion . The research described in this paper has shown that not only is hydrogen absorption caused by CP but that it is considerably enhanced by active ...
... hydrogen that results from applying cathodic protection ( CP ) to control corrosion . The research described in this paper has shown that not only is hydrogen absorption caused by CP but that it is considerably enhanced by active ...
Page 153
... Hydrogen Concentrations Typical hydrogen permeation transients for steel exposed to artificial seawater at a range of applied cathodic potentials are shown in Fig 6 ( 19 ) . In each case , the transient rose to a plateau and the surface ...
... Hydrogen Concentrations Typical hydrogen permeation transients for steel exposed to artificial seawater at a range of applied cathodic potentials are shown in Fig 6 ( 19 ) . In each case , the transient rose to a plateau and the surface ...
Page 154
... hydrogen and thus promote hydrogen uptake by the steel . Plateau in Region II Crack Branching . There are several possible explanations for this effect . Crack branching is commonly observed when stress corrosion occurs under static ...
... hydrogen and thus promote hydrogen uptake by the steel . Plateau in Region II Crack Branching . There are several possible explanations for this effect . Crack branching is commonly observed when stress corrosion occurs under static ...
Contents
FATIGUE GUIDANCE FOR OFFSHORE STRUCTURES | 1 |
OFFSHORE MECHANICS AND ARCTIC ENGINEERING | 14 |
STRUCTURAL INTEGRITY METHODS FOR WELDED COMPONENTS | 55 |
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analysis applied assessment austenitic axial behaviour bending brace calculated cathodic protection Charpy chord Corrosion Fatigue crack depth crack front crack growth rate crack propagation crack tip CTOD cycles defect deformation developed effect Efthymiou equations evaluation experimental failure fatigue crack growth fatigue guidance fatigue lives fatigue strength fatigue tests Figure finite element finite element analysis fracture mechanics fracture toughness GCHAZ geometry hammer peening high strength steels hydrogen increase Laser welds load material measured method microstructure mismatch mixed mode multiplanar notch offshore structures parameters parametric equations parent plate peening pipe plate thickness predictions Proc procedure region repair residual stress ring-stiffened joints riser S-N curve sea water seawater shown in Fig strain stress concentration stress concentration factor stress intensity factor stress range surface cracks Table tensile test results titanium TMCP tubular joints tested values weld metal weld toe welded joints weldment yield strength