Fabricating Defect-Free API X65 Steel Welds under Underwater Wet Conditions using Friction Taper Plug Welding

2016 ◽  
Vol 31 (16) ◽  
pp. 2123-2129 ◽  
Author(s):  
Feixiang Wang ◽  
Xinqi Yang ◽  
Lei Cui ◽  
Yayun Yin
Keyword(s):  
Api X65 Steel ◽  
Friction Taper Plug Welding ◽  
X65 Steel ◽  
Steel Welds

Stress corrosion cracking assessment of API X65 steel non-conventionally heat treated

2015 ◽  
Vol 67 (4) ◽  
pp. 352-360 ◽  
Author(s):  
C. Natividad ◽  
R. García ◽  
V. H. López ◽  
R. Galván-Martínez ◽  
M. Salazar ◽  
...  
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Heat Treated ◽  
Api X65 Steel ◽  
X65 Steel

scholarly journals Metallurgical Characterization of API X65 Steel Joint Welded by MIG Welding Process with Axial Magnetic Field

2017 ◽  
Vol 20 (5) ◽  
pp. 1174-1178 ◽  
Author(s):  
Constantino Natividad ◽  
Rafael García ◽  
Victor H. López ◽  
Antonio Contreras ◽  
Melchor Salazar
Keyword(s):  
Magnetic Field ◽  
Axial Magnetic Field ◽  
Welding Process ◽  
Mig Welding ◽  
Steel Joint ◽  
Api X65 Steel ◽  
X65 Steel ◽  
Metallurgical Characterization

scholarly journals Investigating an API X65 steel pipe cladded with alloy 625

2021 ◽  
Vol 18 ◽  
pp. e2465
Author(s):  
Rangel Knerek ◽  
Guilherme Vieira Braga Lemos ◽  
George Vander Voort ◽  
Diego Aires de Freitas ◽  
William Haupt ◽  
...  
Keyword(s):  
Steel Pipe ◽  
Alloy 625 ◽  
Api X65 Steel ◽  
X65 Steel

Synergistic effect of stray current and stress on corrosion of API X65 steel

2014 ◽  
Vol 21 ◽  
pp. 474-480 ◽  
Author(s):  
Xinhua Wang ◽  
Xinghua Tang ◽  
Liwei Wang ◽  
Cui Wang ◽  
Wenqing Zhou
Keyword(s):  
Synergistic Effect ◽  
Stray Current ◽  
Api X65 Steel ◽  
X65 Steel

A phenomenological model of ductile fracture for API X65 steel

2007 ◽  
Vol 49 (12) ◽  
pp. 1399-1412 ◽  
Author(s):  
Chang-Kyun Oh ◽  
Yun-Jae Kim ◽  
Jong-Hyun Baek ◽  
Young-Pyo Kim ◽  
Woosik Kim
Keyword(s):  
Ductile Fracture ◽  
Phenomenological Model ◽  
Api X65 Steel ◽  
X65 Steel

Ductile Failure Analyses for API X65 Pipes Based on Local Failure Criteria

2006 ◽  
Author(s):  
Chang-Kyun Oh ◽  
Yun-Jae Kim ◽  
Jong-Hyun Baek ◽  
Young-Pyo Kim ◽  
Woo-Sik Kim
Keyword(s):  
Experimental Data ◽  
Failure Criterion ◽  
Hydrostatic Stress ◽  
Stress Triaxiality ◽  
Ductile Failure ◽  
Failure Criteria ◽  
Local Failure ◽  
Defective Region ◽  
Api X65 Steel ◽  
X65 Steel

A local failure criterion for the API X65 steel is applied to predict ductile failure of full-scale API X65 pipes with simulated corrosion and gouge defects under internal pressure. The local failure criterion is the stress-modified fracture strain for the API X65 steel as a function of the stress triaxiality (defined by the ratio of the hydrostatic stress to the effective stress). Based on detailed FE analyses with the proposed local failure criteria, burst pressures of defective pipes are estimated and compared with experimental data. The Failure of corroded pipes is governed by local necking and plastic collapse in the defective region, rather than failure. For pipes with gouge defects, on the other hand, it is found that fracture is dominant. The predicted burst pressures are in good agreement with experimental data. Noting that an assessment equation against the gouge defect is not yet available, parametric study is performed, from which a simple equation is proposed to predict burst pressure for API X65 pipes with gouge defects.

Finite Element Ductile Failure Simulations of Tensile and Bend Bars Made of API X65 Steels

2007 ◽  
Author(s):  
Yun-Jae Kim ◽  
Chang-Kyun Oh ◽  
Tae-Kwang Song ◽  
Do-Jun Shim
Keyword(s):  
Finite Element ◽  
Experimental Test ◽  
Mechanical Model ◽  
Three Dimensional ◽  
Ductile Failure ◽  
Experimental Tests ◽  
Single Edge ◽  
Gtn Model ◽  
Api X65 Steel ◽  
X65 Steel

This paper presents a micro-mechanical model of ductile fracture for the API X65 steel using the Gurson-Tvergaard-Needleman (GTN) model. Experimental tests and FE damage simulations using the GTN model are performed for smooth and notched tensile bars, from which the parameters in the GTN model are calibrated. As application, the developed GTN model is applied to simulate small-sized, single-edge-cracked tensile and bend bars, via three-dimensional FE damage analyses. Comparison with experimental test data shows overall good agreements.

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