scholarly journals Tension fracture behaviors of welded joints in X70 steel pipeline

2011 ◽  
Vol 1 (3) ◽  
pp. 031008 ◽  
Author(s):  
Dejun Kong ◽  
Yongzhong Wu ◽  
Dan Long ◽  
Chaozheng Zhou
Keyword(s):  
Welded Joints ◽  
Steel Pipeline ◽  
Fracture Behaviors ◽  
Tension Fracture

scholarly journals Effect Range of the Material Constraint-II. Interface Crack

Metals ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 696 ◽  
Author(s):  
Yue Dai ◽  
Jie Yang ◽  
Lei Wang
Keyword(s):  
Interface Crack ◽  
Welded Joints ◽  
Integrity Assessment ◽  
Center Crack ◽  
Fracture Behaviors ◽  
Selection Of ◽  
Material Constraints

The selection of fracture behaviors used in the structure integrity assessment has significant implications on the accuracy of the assessment. The effect range of the material constraint is an important factor which effects the fracture behaviors of structures and exists in the different kinds of welded joints with the center crack. However, for the material constraint induced by an interface crack, which also appears widely in the welded joints, it is not clear whether the effect range exists or not. The further study of the effect range of the material constraint for the welded joints with interface crack is meaningful. Thus, in this study, different basic models with interface crack were designed, the fracture behaviors of these basic models under different material constraints were calculated, and the effect range of the material constraint induced by interface crack were studied. This study about the interface crack and the previous study about the center crack provide an additional basis for an accurate structure integrity assessment.

scholarly journals Characterization of steel pipeline welded joints with artificial aging using TEP measurements

2019 ◽  
Author(s):  
Sergio Ramírez ◽  
Héctor Carreón ◽  
Alberto Ruiz ◽  
Martin Barajas-Álvarez
Keyword(s):  
Welded Joints ◽  
Artificial Aging ◽  
Steel Pipeline

scholarly journals Effect of natural aging on the microstructural regions, mechanical properties, corrosion resistance and fracture in welded joints on API5L X52 steel pipeline

2014 ◽  
Vol 50 (3) ◽  
pp. e024 ◽  
Author(s):  
Benjamín Vargas-Arista ◽  
Apolinar Albiter ◽  
Felipe García-Vázquez ◽  
Óscar Mendoza-Camargo ◽  
José Manuel Hallen
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Welded Joints ◽  
Natural Aging ◽  
Steel Pipeline ◽  
X52 Steel

Deformation and fracture behavior of an Al-Li-Cu-Mg-Zr alloy 8090

1990 ◽  
Vol 48 (4) ◽  
pp. 974-975
Author(s):  
D.M. Jiang ◽  
B.D. Hong
Keyword(s):  
High Strength ◽  
Deformation And Fracture ◽  
Fracture Behaviors ◽  
Aluminum Lithium ◽  
Carbon Fiber Reinforced Composites ◽  
Peak Aged ◽  
Aluminum Lithium Alloys ◽  
High Strength Aluminum Alloys ◽  
Lithium Alloys ◽  
Zr Alloy

Aluminum-lithium alloys have been recently got strong interests especially in the aircraft industry. Compared to conventional high strength aluminum alloys of the 2000 or 7000 series it is anticipated that these alloys offer a 10% increase in the stiffness and a 10% decrease in density, thus making them rather competitive to new up-coming non-metallic materials like carbon fiber reinforced composites.The object of the present paper is to evaluate the inluence of various microstructural features on the monotonic and cyclic deformation and fracture behaviors of Al-Li based alloy. The material used was 8090 alloy. After solution treated and waster quenched, the alloy was underaged (190°Clh), peak-aged (190°C24h) and overaged (150°C4h+230°C16h). The alloy in different aging condition was tensile and fatigue tested, the resultant fractures were observed in SEM. The deformation behavior was studied in TEM.

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