... experiment weld access hole ductile crack international ocean japan government leg length saw stress triaxiality weld metal specimen horizontal notch fracture concentration point polar engineering conference low peak value asia government peak value thickness toughness aiscf6...

... austenitic stainless steel corrosion management oilfield chemistry corrosion inhibition weld metal sus316l delimitation only quasi-cleavage area concentration ABSTRACT Hydrogen embrittlement in the TIG weld metal is investigated in this work by employing slow strain rate tensile (SSRT) tests...

..., mechanical properties of the heat affected zone and deposited weld metal (WM) are key issues for successfully using this newly developed steel. The current investigation evaluated the weldability of high strength 9% Ni steel plates using the gas metal arc welding (GMAW) process with Ni-based alloy FM680...

...). The program characterized tensile and toughness properties of test welds as a function of welding process and parameters. The paper provides guidance on the optimum welding conditions that will help maintain minimum weld metal strength and toughness properties for high-strength steels used in critical...

..., embrittled weld metal, and a heat-affected zone (HAZ) induced by welding. A quenched and tempered high-strength steel plate with a thickness of 28 mm was used for the base metal. A welding consumable of NRL-S was used for the embrittled weld metal. Specimens for the HAZ were produced by a simulated thermal...

... of high strength low alloy welds of conventional rutile-type flux-cored wires. This is because the heat of PWHT promotes the precipitation of fine carbides in the weld metal by combining carbon with small amounts of niobium and vanadium, which is known as precipitation hardening. It has been already...

... behavior and strain aging capability of both the steel and the weld metal into models describing their behavior during reeling, installation, and service. This phase of the project looks at the tensile behavior of example weld areas both at room temperature and at elevated temperatures. strength...

... acicular ferrite hydraulic fracturing polygonal ferrite bainite room temperature steel base metal micrograph grained weld metal welding strength microstructure fusion line metals & mining toughness fracture toughness weld metal fraction ferrite upstream oil & gas...

... to refine a microstructure was applied to the weld metal (WM). It was comfirmed that the formation of intragranular ferrite and optimized Ni addition to the groove of an EB weld joint were important for improving the low-temperature toughness. Based on the above-mentioned technologies, it was demonstrated...

... line position. The fracture toughness at -60°C, based on SENB05 ( a/t =0.5) geometry, appeared to be low for both weld metal and fusion line positions. More specific measures may be taken into account in welding procedure qualification of the current steels, such as using lower crack length (e.g., a/t...

... Abstract Utilization of clad or lined pipes is considered as an alternative for corrosion management in many new oil and gas developments. Detrimental hydrogen introduced in the weld metal reduces the ductility of the weld and increases the possibility of cold cracking. Computer simulations...

...). simulation lippold alloy circumferential metals & mining mold cptt result alexandrov weld metal optical pyrometer ni-base alloy composition susceptibility base composition filler metal pin length solidification str ss dta Effect of Alloying Additions on the Microstructure...

... the application of a fillet Tee joint to the strength deck structure of container ships to enhance crack arrestability. Ultra-large scale crack propagation tests were conducted to investigate long brittle crack propagation/arrest behavior in fillet Tee joint structures with varied plate thicknesses and weld metal...

... of weldments of available structural steels are insufficient or on the borderline for arctic application down to -60°C, and may thus not give the required robust solutions. Therefore, the present work was initiated to evaluate weld metal toughness based on the use of commercial wires to clarify the need...

... society temperature distribution welding condition increment heat input solidification btr plastic strain increment plastic strain increment strain increment weld metal Study on Solidification Cracking Under High-speed Narrow Gap Welding with Tandem Torches Graduate School of Engineering...

... catalyst precipitate weld metal precipitate evolution replication test base metal sigma phase stainless steel cyclone microstructure embrittlement knowledge management A Case study of regenerator cyclone embrittlement in fluid catalyst cracking unit Jae-woong Kim*, Jeung-gug Gong*, Young-su...

... fabrication and inspection criteria for arctic structures. weld microstructure fcaw weld correspond manufacturer arctic service columnar weld metal hydraulic fracturing weld centerline low temperature toughness application toughness property welding technique microstructure upstream oil...

..., the tensile stresses and the level of hydrogen predicted by the computer model is considered to support the experimental findings. weld metal hydrostatic pressure offshore pipeline hydrogen concentration metals & mining weld hydrogen diffusion welding concentration hydrogen simulation...

... Abstract In evaluation of materials for arctic applications, their low temperature properties are addressed. The heat affected zone toughness has been shown to be critical with respect to satisfactory fracture toughness. Less attention has been given to the weld metal. Therefore, the present...

... Abstract The hydrogen absorption capability of high-strength weld wire and weld metal with 1000 MPa for line pipes was investigated in order to prevent the cold-cracking of high-strength weld metal for line pipes by applying hydrogen traps to high-strength weld metal. Hydrogen concentration...