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 129
SEM photographs shown in Fig . 1 indicate that the average grain size in the
surface layer is smaller than 2um in diameter , and the microstructure of the
surface layer is composed of ultra - fine grain ferrite and finely dispersed
cementite ( 6 ) .
SEM photographs shown in Fig . 1 indicate that the average grain size in the
surface layer is smaller than 2um in diameter , and the microstructure of the
surface layer is composed of ultra - fine grain ferrite and finely dispersed
cementite ( 6 ) .
Page 138
4 ) . conventional microstructure , and depth of corrosion pits on SUF
microstructure were shallower than those on conventional ... Therefore , the
fatigue strength of SUF in seawater is better than that of conventional
microstructures .
4 ) . conventional microstructure , and depth of corrosion pits on SUF
microstructure were shallower than those on conventional ... Therefore , the
fatigue strength of SUF in seawater is better than that of conventional
microstructures .
Page 203
2 ( d ) , SC CGHAZ microstructure , coarser ferrite was formed compared with IC
CGHAZ ( Fig . 2 ( c ) ) . But , SCR CGHAZ specimen had the relatively high impact
toughness , which resulted from the fine microstructures as shown in Fig . 2 ( b ) ...
2 ( d ) , SC CGHAZ microstructure , coarser ferrite was formed compared with IC
CGHAZ ( Fig . 2 ( c ) ) . But , SCR CGHAZ specimen had the relatively high impact
toughness , which resulted from the fine microstructures as shown in Fig . 2 ( b ) ...
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Contents
OMAE2001MAT3010 | 1 |
OMAE2001MAT3011 | 11 |
OMAE2001MAT3013 | 17 |
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analysis applied assessment bending boundary buckling calculated Charpy compared components compressive considered controlled corrosion crack crack initiation critical CTOD curve cycle defects defined deformation derivatives determined developed direction discrete displacement distribution ductile crack dynamic effect element Engineering equation estimated evaluated experiments factors failure fatigue fatigue cracks field Figure finite element flexible FPSO fracture toughness function geometry grain growth higher impact increase inspection International joints layer length loading material maximum measured mechanical metal method microstructure node notch observed obtained offshore operation parameters performed phase pipe pipeline plastic plate predicted present pressure prestrained problem procedure range region respectively riser shown shows simulated specimens standard steel strain strength stress structures surface Table technique temperature tensile thickness weight weld yield