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 First cycle Original through ...
... 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 First cycle Original through ...
Page 51
... cycle simulation ; Fig.3 Scanning electron micrograph of boundary decoration in : a ) Steel 1 ; b ) Steel 2 baseline dual cycled specimens . X Maximum load o Fracture -40 -20 Test temperature ,. RESULTS single had an areas of ...
... cycle simulation ; Fig.3 Scanning electron micrograph of boundary decoration in : a ) Steel 1 ; b ) Steel 2 baseline dual cycled specimens . X Maximum load o Fracture -40 -20 Test temperature ,. RESULTS single had an areas of ...
Page 53
... cycle . intercritical second cycle resulted in the formation believed to ferrite / carbide aggregates , pearlite , along the prior austenite grain boundaries . The formation of grain boundary microphases has been discussed in some ...
... cycle . intercritical second cycle resulted in the formation believed to ferrite / carbide aggregates , pearlite , along the prior austenite grain boundaries . The formation of grain boundary microphases has been discussed in some ...
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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aluminium austenite axial base metal bead behaviour brittle CGHAZ Charpy Charpy impact test chemical composition coating cooling corrosion crack front crack tip critical CTOD CTOD fracture toughness CTOD test CTOD value deformation developed distribution effect energy evaluation experimental fatigue crack ferrite Figure gauges Grade grain coarsened HAZ groove HAZ toughness heat input hydrogen cracking ICCGHAZ inherent strain intercritical kJ/mm load martensite Materials Engineering ASME measured mechanical properties method microstructure narrow gap notched panel obtained OMAE peak temperature pearlite pipe pipeline Pop-in pressure PWHT reheated residual stress samples seawater shielding gas simulation single-U Statoil steel plates steel TM1 strain gauges submerged arc welding surface notched specimen Table tempered tensile strength thermal cycle through-thickness notched TMCP steels underwater welding Volume III-A weld metal weldability welded joint welding conditions Welding Institute welding parameters welding procedure welding process welding residual stress weldment width yield strength