Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 10American Society of Mechanical Engineers, 1991 - Arctic regions |
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Page 38
... crack tip . Because the crack placement is a critical step in the preparation of the test specimen a lot of skill and experience is needed to ensure that the fatigue crack tip is located in the proper HAZ regions . are Finally , upon ...
... crack tip . Because the crack placement is a critical step in the preparation of the test specimen a lot of skill and experience is needed to ensure that the fatigue crack tip is located in the proper HAZ regions . are Finally , upon ...
Page 113
... crack front Fatigue precrack Fracture surface Fatigue crack front- Stable crack growth Microstructures at the end of stable crack growth ICCGHAZ cut A ' Specimen thickness Fracture initiation point Cut Polishing & Etching mo A - A ...
... crack front Fatigue precrack Fracture surface Fatigue crack front- Stable crack growth Microstructures at the end of stable crack growth ICCGHAZ cut A ' Specimen thickness Fracture initiation point Cut Polishing & Etching mo A - A ...
Page 114
crack tip was at a distance from the CGHAZ . Consequently the initiation of cleavage fracture in the surface notched specimen is not always controlled by the microstructure fatigue crack tip . DISCUSSION existing Effect of CGHAZ Size ...
crack tip was at a distance from the CGHAZ . Consequently the initiation of cleavage fracture in the surface notched specimen is not always controlled by the microstructure fatigue crack tip . DISCUSSION existing Effect of CGHAZ Size ...
Contents
RESIDUAL STRESS AND DISTORTION IN WELDS | 1 |
WELD METAL AND HAZ PROPERTIES | 37 |
The Effect of Intercritical Thermal Cycles on HAZ Microstructure and Toughness in CMnAlNb | 49 |
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alloys analysis austenite axial base metal bead behaviour brittle CGHAZ Charpy chemical composition cooling corrosion crack front crack tip critical CTOD CTOD fracture toughness CTOD test CTOD value deformation distribution effect experimental fatigue crack ferrite Figure Fracture Mechanics fusion boundary gauges grain coarsened HAZ groove HAZ region HAZ toughness heat affected zone heat input hydrogen cracking hyperbaric ICCGHAZ inherent strain intercritical kJ/mm load martensite measured mechanical properties method microstructure multi-pass welds narrow gap notched panel obtained OMAE peak temperature pearlite pipe plastic plate thickness Pop-in pressure PWHT reheated samples shielding gas simulation single-U Statoil steel plates steel TM1 strain gauges submerged arc welding surface notched specimen Table tempered tensile thermal cycle through-thickness notched titanium TMCP steel underwater welding weld metal weld passes welded joint welding conditions Welding Institute welding parameters welding procedure welding process welding residual stress weldments width yield strength