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 51
... grain boundaries with an intragranular microstructure of ferrite with aligned second phase , the second phase being principally M - A constituent ( Fig . 2 ( c ) ) . However , examination of this steel in the SEM showed the grain ...
... grain boundaries with an intragranular microstructure of ferrite with aligned second phase , the second phase being principally M - A constituent ( Fig . 2 ( c ) ) . However , examination of this steel in the SEM showed the grain ...
Page 53
... grain boundaries . The formation of grain boundary microphases has been discussed in some detail by Sparkes ( 9 ) . On reheating , nucleation of austenite occurs preferentially on the energetically favourable prior austenite grain ...
... grain boundaries . The formation of grain boundary microphases has been discussed in some detail by Sparkes ( 9 ) . On reheating , nucleation of austenite occurs preferentially on the energetically favourable prior austenite grain ...
Page 54
... grain boundary M - A constituent can have a significant effect , probably by acting as sites for fracture initiation as found by other workers ( 3,5 ) . The effect of grain boundary pearlite islands presumably depends on the mechanical ...
... grain boundary M - A constituent can have a significant effect , probably by acting as sites for fracture initiation as found by other workers ( 3,5 ) . The effect of grain boundary pearlite islands presumably depends on the mechanical ...
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