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 50
... cycles lay in the times at the maximum temperature , producing variations in prior austenite grain size , and the cooling rate , to vary the transformation microstructure . Table 2 Thermal cycle data Original through- thickness of plate ...
... cycles lay in the times at the maximum temperature , producing variations in prior austenite grain size , and the cooling rate , to vary the transformation microstructure . Table 2 Thermal cycle data Original through- thickness of plate ...
Page 51
r a ) Single cycle simulated specimen ; b ) Steel 1 baseline dual cycle simulation ; Fig.3 Scanning electron micrograph of boundary decoration in : a ) Steel 1 ; b ) Steel 2 baseline dual cycled specimens . X Maximum load -40 Test ...
r a ) Single cycle simulated specimen ; b ) Steel 1 baseline dual cycle simulation ; Fig.3 Scanning electron micrograph of boundary decoration in : a ) Steel 1 ; b ) Steel 2 baseline dual cycled specimens . X Maximum load -40 Test ...
Page 53
... cycle . In all cases the application of an intercritical second cycle resulted in the formation of ferrite / carbide aggregates , believed to be pearlite , along the prior austenite grain boundaries . The formation of grain boundary ...
... cycle . In all cases the application of an intercritical second cycle resulted in the formation of ferrite / carbide aggregates , believed to be pearlite , along the prior austenite grain boundaries . The formation of grain boundary ...
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