Metallurgical Reactions in Welding of Clad X60/X65 Pipelines

Bjaaland, Helena (Norwegian University of Science and Technology (NTNU)) | Akselsen, Odd M. (Norwegian University of Science and Technology (NTNU)) | Olden, Vigdis (SINTEF) | Nyhus, Bård (SINTEF) | Karlsen, Morten (SINTEF) | Hjelen, Jarle (Norwegian University of Science and Technology (NTNU))



This work investigates the metallurgical changes occurring during welding of clad pipes. Welded samples with and without a Ni-interlayer between the clad and base metal (BM) were investigated by light optical microscope, electron microprobe analysis and microhardness measurements. The investigations have focused on the microstructure and properties of the clad and BM close to the weld, in addition to the root and hotpass. The results indicate that the presence of a Ni-interlayer prevents carbon diffusion across the BM-clad interface during exposure to elevated temperatures, thus preventing the formation of a hard and crack susceptible microstructure.

Duplicate Docs Excel Report

None found

Similar Docs  Excel Report  more

Effects of Size Distribution of Deep-Sea Polymetallic Nodules on the Estimation of Abundance Obtained from Seafloor Photographs using Conventional Formulae1.000OnePetro
Electric-Submersible-Pump Performance under Methane/Water/Methane-Hydrate Pipe Flows1.000OnePetro
P-wave Velocity Monitoring during the Dissociation of Methane Hydrate Bearing Sand by using Giant Pressure Cell1.000OnePetro
Displacement of Solution and Hydrates Formation in Cooled Glass Beads1.000OnePetro
Water-hammer Pressure in Hydraulic Lifting Pipeline of Deep Sea Mining System1.000OnePetro
Spatial Configurations and Particle Transportation Parameters of Flexible Hose in Deep-sea Mining System1.000OnePetro
Geological Constraint on Gas Hydrate Accumulation in Qilian Mountain Permafrost - A Case in DK-9 Hole1.000OnePetro
Experimental Study on Methane Hydrate Inhibitors for Hydrate Control in Deep-sea Drilling1.000OnePetro
Change of Biogenic Ba Content in Pacific Ferromanganese Crusts since Cenozoic ––A Signal of Paleoproductivity Pulses?1.000OnePetro
Economic Feasibility Impacts Of Waste And Waste Water Treatment Regulations For Deep Ocean Hydrothermal Ore Mining in Japan1.000OnePetro
Frictional Strength between Well and Sediment under Confining Pressure for Methane Hydrate Production Well Integrity1.000OnePetro
Comparison of Lifecycle Impacts of Seafloor Mining with Onshore Equivalents1.000OnePetro
The Summary of Environmental Baseline Survey for Mining the Cobalt-rich Ferromanganese Crust on Deep Seamount in Japan’s License Area1.000OnePetro
Experimental Study of Mud Erosion Phenomena at Sand Mud Alternate Layer1.000OnePetro
Shear Behaviour and Localized Deformation of Methane Hydrate-Bearing Sand using High Pressure Plane Strain Shear Tests1.000OnePetro
Effect of Fines on Shear Strength of Methane Hydrate Bearing Sand1.000OnePetro
Depressurization and Electrical Heating of Hydrate Sediment for Gas Production1.000OnePetro
Research on Variably Accelerated Settling of Coarse Mineral Particles in Still Water1.000OnePetro
Reconsideration of Polymetallic Nodule Processing Methods - Further Improvement of Existing Methods1.000OnePetro
Numerical Simulation of Gas Hydrate Bearing Sediments for Enhanced Recovery Using Partial Oxidation Method1.000OnePetro
Numerical Simulation of Mud Erosion by Water Flow in Porous Media Using Lattice Boltzmann Method1.000OnePetro
Adiabatic Conversion Method for the Development of Marine Hydrate Deposits1.000OnePetro
Centrifuge Study on Undrained and Drained Behaviors of a Laterally Loaded Bucket Foundation in a Silty Sand1.000OnePetro
Resistance Factor Calibration of Driven Pile Pullout in Sands1.000OnePetro
Experimental Study on the Coefficient for Predicting the Adfreeze Bond Strength1.000OnePetro
Experimental Investigation on Global Responses of a Large Floatover Barge in Extremely Shallow Water1.000OnePetro
Fatigue Crack Growth Rate of API 5L X65 Pipe in Sweet Environments for Riser and Flowline Applications1.000OnePetro
Reliability-Based Fracture Mechanics Approach to Fatigue Design of Julia Flowline1.000OnePetro
A Sea Wave Height Measurement Method Based On 3-D Image Measurement Technique1.000OnePetro
Characterization of Minimum Base Metal CTOD Values to Screen for API RP2Z Preproduction Qualification1.000OnePetro
Strain-Based Design of pipelines –The Important Role of Numerical Modelling in Fracture Assessments1.000OnePetro
Numerical Simulation of Fate of CO2 Seeping from Seabed Considering Tidal and Ocean Currents1.000OnePetro
Numerical Analysis of Circular Cylinder Vortex-Induced Vibration(VIV) in Uniform and Oscillatory Flows at Different Mass Ratios1.000OnePetro
Characterization of Weld Properties for Arctic Service1.000OnePetro
Numerical Approach for the Derivation of Interaction Diagrams for Piles under Cyclic Axial Loading1.000OnePetro
Design of a Newly Developed Hybrid Underwater Robotic Vehicle1.000OnePetro
An Absolute Magnetic Rotary Encoder Based on Kalman Filter1.000OnePetro
Experimental Study on the Cryogenic Storage Tank made of High Manganese Steel1.000OnePetro
Research on the Key Technologies for Tidal Power System with Low Current Velocity1.000OnePetro
Wave energy potential offshore Apulian coasts (Italy)1.000OnePetro
Hull Form Optimization for Reduced Drag and Improved Seakeeping Using a Surrogate-Based Method1.000OnePetro
Vessel Speed Effect on S-laying Operation1.000OnePetro
Tensile Fracture of Wrinkled Cold Bend Pipe under Monotonic Loading Condition1.000OnePetro
An Experimental Study on Deepwater Crane Installation of Subsea Equipment in Waves1.000OnePetro
Improvement of a Suction Rate Formula from the Bottom of the Sheet Pile of a Coastal Dike1.000OnePetro
Study on Solidification Cracking Under High-speed Narrow Gap Welding with Tandem Torches1.000OnePetro
Large-Scale Welding Deformation Analysis of Ship Structure by Idealized Explicit FEM Using Multigrid Method1.000OnePetro
Analysis of Cracking at a 90° Elbow of the Level Gauge in an Atmospheric Fractionator1.000OnePetro
Level 3 Fitness for Service Assessment of CUI Damage in a Deisobutanizer Tower1.000OnePetro
The Effects of Weld Metallurgy and Passivation Treatment on the Corrosion of Austenitic Stainless Steel Weldment in Urea Service1.000OnePetro
A New Ice Load-Response Model for Structural Design of Ice Classed Ships1.000OnePetro
Applications of Acoustic Positioning Technique in Construction of the Immersed Tunnels1.000OnePetro
Effects of Wave Interference on Farfield Ship Waves in Shallow Water1.000OnePetro
Validation of Määttänen–Blenkarn Ice Model for Ice–structure Interaction against Ice Tank Tests1.000OnePetro
Influence of Joint Flexibility on Local Dynamics of a Jacket Support Structure1.000OnePetro
A Task Space based Weathervaning Control for Offshore Vessels1.000OnePetro
Using Engineering Data Comparison Method for Condition Based Maintenance System of Offshore Platform1.000OnePetro
Introduction to a Condition-based Maintenance Solution for Offshore Platforms1.000OnePetro
A Study on the Development of Prognosis System for Offshore Plant Equipment1.000OnePetro
Development of Maintenance System for Equipments of Offshore Plant1.000OnePetro
Design Considerations for the Condensate Stabilization and Liquefaction Units in LNG FPSO1.000OnePetro
Monitoring of Yan Liao Beach Nourishment in Northeast Coast of Taiwan1.000OnePetro
OpenFOAM Finite Volume Method Implementation of a Fully Nonlinear Potential Flow Model for Simulating Wave-Structure Interactions1.000OnePetro
Simulation of Breaking Wave Impact on a Vertical Wall with a Compressible Two-Phase Flow, Model1.000OnePetro
Numerical and Experimental Studies of Moving Cylinder in Uni-directional Focusing Waves1.000OnePetro
Numerical and Experimental Studies of Interaction between FPSO and Focusing Waves1.000OnePetro
Simulations of Deepwater SCR In-field Profiles in Simple Catenary and Lazy Wave Configurations1.000OnePetro
Immersed Boundary Method for Viscous Flow with Moving Rigid Boundary1.000OnePetro
Numerical Simulations of Wave and Flow Variations between Submerged Breakwaters and Slope Seawall1.000OnePetro
Coupled Motion Response of a Moored Floating Body in Breaking a Mooring Line in Waves1.000OnePetro
Numerical Simulation of Sediment-Laden Flow Around a Circular Cylinder1.000OnePetro
Application of Hydrodynamic Model on Environmental Management of Offshore Cage Farming1.000OnePetro
Effect of Cargo Phase Transition on Sloshing Impact of LNG Carrier Tank1.000OnePetro
Experimental and Numerical Investigation on Extreme Wave Propagation and Run-Up of Brine (Dead Sea Water) and Fresh Water1.000OnePetro
Numerical Simulation of Nonlinear Wave Interactions with Linearly Sheared Currents1.000OnePetro
Characteristics of Bow-flare Slamming Loads on an Ultra-large Containership in Irregular Waves1.000OnePetro
Characteristics of Stern Slamming Loads on an Ultra-large Containership in Regular and Irregular Waves1.000OnePetro
Impact Analysis using CFD – A Comparative Study1.000OnePetro
Numerical Simulations of WILS Experiments1.000OnePetro
Twice Expansion Analysis Method in Time-Domain for Wave-body Interaction1.000OnePetro
The Axial Force Analysis of Submarine Pipe-In-Pipe1.000OnePetro
Numerical Estimation for Submersible Drift Forces Evaluated by Experimental Tests1.000OnePetro
Numerical Analysis of Liquid Impact Energy Dissipation1.000OnePetro
Generation of Multiple Equivalent Regular Waves for Preliminary Analyses of Floating Production Systems1.000OnePetro
Skipping Dynamic Forbidden Sectors in Thrust Allocation for Marine Vessels1.000OnePetro
The Relationship between Sea Level Change of China's Coast and ENSO1.000OnePetro
Experimental Investigation on Ship Wave Added Resistance in Regular Head, Oblique, Beam, and Following Waves1.000OnePetro
Numeric Modeling for Tensile Plastic Collapse in X80 Line Pipe1.000OnePetro
Comparative Study on Role of Schmidt Number in Suspension Modeling1.000OnePetro
Comparative Study of Lifting Operations of Offshore Wind Turbine Monopile and Jacket Substructures Considering Vessel Shielding Effects1.000OnePetro
Dynamic Strength of a Ship Based on 2D Hydroelasto-plasticity and FEM in Extreme Waves1.000OnePetro
Design on Flat-type River-Sea-Going Multi-Purpose Ship1.000OnePetro
Deterministic Non-Linear Wave Forecast and Motion Prediction for Short-Term Offshore Operations1.000OnePetro
Experimental Research on the Wave Transformation over Submerged Structures with Sudden Depth Changes1.000OnePetro
An Optimisation Exercise for Positioning the DART Buoys in the South China Sea1.000OnePetro
Modeling of Tsunami Detection by High Frequency Radar Based on Simulated Tsunami Case Studies in the Mediterranean Sea1.000OnePetro
Second-Order Lagrangian Interactions of Tri-Dimensional Gravity Waves1.000OnePetro
The Strain Capacity of the Girth Weld Joint Cracked at “Near-seam Zone"1.000OnePetro
Soil Improvement Using Electroosmosis With the Suitable Operation Process: Field Test1.000OnePetro
Experimental Investigation of Aerodynamic Characteristics of the Above-Water Parts of Offshore Platforms1.000OnePetro