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 57
... samples hardness that remains close to 150 Hv5 , 2 ) the 750 ° C and 800 ° C belong to the intercritical [ Ac * 1 , Ac * 3 ] interval in welding conditions . Ac * 1 and Ac * 3 are respectively the start and finish dynamical ...
... samples hardness that remains close to 150 Hv5 , 2 ) the 750 ° C and 800 ° C belong to the intercritical [ Ac * 1 , Ac * 3 ] interval in welding conditions . Ac * 1 and Ac * 3 are respectively the start and finish dynamical ...
Page 59
... samples . simulated at At = 25 s . The intergranular carbides are expected to be ineffective on the toughness for the present samples . This conclusion arises from the low density of these grain boundary precipitates that agrees with ...
... samples . simulated at At = 25 s . The intergranular carbides are expected to be ineffective on the toughness for the present samples . This conclusion arises from the low density of these grain boundary precipitates that agrees with ...
Page 60
... samples with , for consequence , a better crack initiation resistance . 59 50 0 2 4 6 8 10 12 Austenite Vol . fraction ( % ) Fig.11 - Evolution of the -40 ° C CVN toughness with the primitive austenite volume fraction ( H - samples ) ...
... samples with , for consequence , a better crack initiation resistance . 59 50 0 2 4 6 8 10 12 Austenite Vol . fraction ( % ) Fig.11 - Evolution of the -40 ° C CVN toughness with the primitive austenite volume fraction ( H - samples ) ...
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