Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 12, Part 3American Society of Mechanical Engineers, 1993 - Arctic regions |
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Page 231
... steels which contained 130 and 30 ppm of nitrogen with respect to weldability . Particular empha- sis has been placed on the understanding of the " heat input - microstructure - toughness " relationship in the high nitrogen HSLA steel ...
... steels which contained 130 and 30 ppm of nitrogen with respect to weldability . Particular empha- sis has been placed on the understanding of the " heat input - microstructure - toughness " relationship in the high nitrogen HSLA steel ...
Page 236
... steel A is still expected to have larger austenite grains than steel B. At 1350 ° C , TIN begins to dissolve and because of the higher nitrogen content in steel B , the TIN precipitates in steel B are more stable and resistant to ...
... steel A is still expected to have larger austenite grains than steel B. At 1350 ° C , TIN begins to dissolve and because of the higher nitrogen content in steel B , the TIN precipitates in steel B are more stable and resistant to ...
Page 242
... nitrogen steels . ( a ) High nitrogen steel at 820 ° C peak tempera- ture ; and ( b ) Low nitrogen steel at 820 ° C peak temperature . was approximately 280 Å ( 28 nm ) , Figure 14 ( b ) . These TEM data also support the model proposed ...
... nitrogen steels . ( a ) High nitrogen steel at 820 ° C peak tempera- ture ; and ( b ) Low nitrogen steel at 820 ° C peak temperature . was approximately 280 Å ( 28 nm ) , Figure 14 ( b ) . These TEM data also support the model proposed ...
Contents
OFFSHORE MECHANICS AND ARCTIC ENGINEERING | 7 |
HIGH STRENGTH STEELS FOR OFFSHORE | 189 |
Weldability of NitrogenEnhanced HSLA Steels | 231 |
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alloy analysis applied argon artificial neural network ASTM austenite austenite grain bainite base metal behaviour bending CGHAZ Charpy composite pipe cooling corrosion crack propagation CTOD curve cycles developed diameter effect elastomer electrodes Engineering ASME 1993 epoxy equation experimental fabrication factor ferrite firewater firewater system flange fracture fracture mechanics GRE pipe heat input high strength steels HSLA HSLA steels hydrogen increase initial installation intumescent kJ/mm load martensite Materials Engineering ASME maximum method microstructure MIRT nitrogen nitrogen steel node notch offshore structures OMAE parameters performance predicted preheat pressure procedures PWHT range reduced S-N curves seal seawater sheave shielding gas shown in Figure simulated SINTEF specimens spool stainless steel strain surface Table Technology temperature tensile test results thickness toughness tubular joints underwater Underwater Welding values weld metal weldability welded joints weldments wet welding wide plate wire yield strength