Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 3American Society of Mechanical Engineers, 2001 - Arctic regions |
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Page 65
... grain size Austenite grain size ( mm ) 50 50 100 TiN 50 50 200 150 100 TiN precipitation size ( nm ) 0.02 0.04 -40 0.06 0.08 Ti content ( mass % ) Fig . 5 Effect of Ti content on Charpy impact properties of simulated coarse grain HAZ ...
... grain size Austenite grain size ( mm ) 50 50 100 TiN 50 50 200 150 100 TiN precipitation size ( nm ) 0.02 0.04 -40 0.06 0.08 Ti content ( mass % ) Fig . 5 Effect of Ti content on Charpy impact properties of simulated coarse grain HAZ ...
Page 168
... grain size . Figure 1 shows the concept of HAZ microstructure control in various steels . Since the HAZ near the fusion line is heated above 1400 ° C during welding , Y grains in this region markedly coarsen in conventional TiN steels ...
... grain size . Figure 1 shows the concept of HAZ microstructure control in various steels . Since the HAZ near the fusion line is heated above 1400 ° C during welding , Y grains in this region markedly coarsen in conventional TiN steels ...
Page 209
... grain boundary . The obtained hardness and elastic modulus values reflected the strength characteristics of each micro phase . These properties were compared to those from coarse grain steels before decreasing the grain size by hot ...
... grain boundary . The obtained hardness and elastic modulus values reflected the strength characteristics of each micro phase . These properties were compared to those from coarse grain steels before decreasing the grain size by hot ...
Contents
Fatigue Capacity | 1 |
OMAE2001MAT3011 | 11 |
OMAE2001MAT3013 | 17 |
Copyright | |
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analysis applied Arctic Engineering assessment axial base metal bending brittle buckling calculated CGHAZ Charpy impact Charpy impact test components compressive Conference on Offshore crack arrest crack growth criterion CTOD test cycle defined deformation developed discrete displacement distribution DQEM ductile crack initiation dynamic effect elastic equation evaluated failure fatigue cracks ferrite Figure finite element flexible pipe FPSO Fracture Mechanics fracture toughness function fusion line hot spot hull indentation linepipe loading material maximum mechanical properties Mechanics and Arctic method microstructure node notch obtained Offshore Mechanics offshore structures parameters performed pipeline predicted pressure region Rio de Janeiro riser S-N curves shown in Fig shows simulated specimens steel plates stress concentration stress intensity factor surface cracks surface layer Table temperature tensile strength thermal thickness underwater underwater welding virgin steel Weibull distribution weld metal weld toe welded joints weldment yield strength