Cyclic Deformation Behavior and Low-Cycle Fatigue Failure Behavior of TA16 Titanium Alloy

2012 ◽  
Vol 15 (1) ◽  
pp. 465-468
Author(s):  
Qianhua Kan ◽  
Guozheng Kang ◽  
Wenyi Yan
Keyword(s):  
Titanium Alloy ◽  
Fatigue Failure ◽  
Cyclic Deformation ◽  
Deformation Behavior ◽  
Low Cycle Fatigue ◽  
Failure Behavior ◽  
Cycle Fatigue

Investigation of tensile and high cycle fatigue failure behavior on a TIG welded titanium alloy

2021 ◽  
Vol 132 ◽  
pp. 107115
Author(s):  
Duqiang Ren ◽  
Yun Jiang ◽  
Xiaoan Hu ◽  
Xianzheng Zhang ◽  
Xiaoping Xiang ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Fatigue Failure ◽  
High Cycle Fatigue ◽  
Failure Behavior ◽  
Cycle Fatigue

Cyclic Deformation and Buckling Behavior of Pipe With Local Metal Loss Subjected to Seismic Ground Motion

2011 ◽  
Author(s):  
Masaki Mitsuya ◽  
Hiroshi Yatabe
Keyword(s):  
Finite Element ◽  
Cyclic Loading ◽  
Cyclic Deformation ◽  
Deformation Behavior ◽  
Low Cycle Fatigue ◽  
Kinematic Hardening ◽  
Earthquake Resistance ◽  
Metal Loss ◽  
Cycle Fatigue ◽  
Longitudinal Length

Buried pipelines may be deformed due to earthquakes and also corrode despite corrosion control measures such as protective coatings and cathodic protection. In such cases, it is necessary to ensure the integrity of the corroded pipelines against earthquakes. This study developed a method to evaluate the earthquake resistance of corroded pipelines subjected to seismic ground motions. Axial cyclic loading experiments were carried out on line pipes subjected to seismic motion to clarify the cyclic deformation behavior until buckling occurs. The test pipes were machined so that each one would have a different degree of local metal loss. As the cyclic loading progressed, displacement shifted to the compression side due to the formation of a bulge. The pipe buckled after several cycles. To evaluate the earthquake resistance of different pipelines, with varying degrees of local metal loss, a finite-element analysis method was developed that simulates the cyclic deformation behavior. A combination of kinematic and isotropic hardening components was used to model the material properties. These components were obtained from small specimen tests that consisted of a monotonic tensile test and a low cycle fatigue test under a specific strain amplitude. This method enabled the successful prediction of the cyclic deformation behavior, including the number of cycles required for the buckling of pipes with varying degrees of metal loss. In addition, the effect of each dimension (depth, longitudinal length and circumferential width) of local metal loss on the cyclic buckling was studied. Furthermore, the kinematic hardening component was investigated for the different materials by the low cycle fatigue tests. The kinematic hardening components could be regarded as the same for all the materials when using this component as the material property for the finite-element analyses simulating the cyclic deformation behavior. This indicates that the cyclic deformation behavior of various line pipes can be evaluated only based on their respective tensile properties and common kinematic hardening component.

Low-cycle fatigue properties of a titanium alloy exhibiting nonlinear elastic deformation behavior

2011 ◽  
Vol 59 (11) ◽  
pp. 4690-4699 ◽  
Author(s):  
S.Q. Zhang ◽  
S.J. Li ◽  
M.T. Jia ◽  
F. Prima ◽  
L.J. Chen ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Elastic Deformation ◽  
Deformation Behavior ◽  
Low Cycle Fatigue ◽  
Fatigue Properties ◽  
Cycle Fatigue ◽  
Nonlinear Elastic

Cyclic deformation behavior of HAYNES® HR-120® superalloy under low-cycle fatigue loading

2004 ◽  
Vol 36 (1-2) ◽  
pp. 85-98 ◽  
Author(s):  
L.J. Chen ◽  
P.K. Liaw ◽  
H. Wang ◽  
Y.H. He ◽  
R.L. McDaniels ◽  
...  
Keyword(s):  
Cyclic Deformation ◽  
Deformation Behavior ◽  
Low Cycle Fatigue ◽  
Fatigue Loading ◽  
Cycle Fatigue

Low Cycle Fatigue of FeAl (42 at. % Al) at Room Temperature

1996 ◽  
Vol 460 ◽  
Author(s):  
D. B. Hanes ◽  
R. Gibala
Keyword(s):  
Fatigue Life ◽  
Cyclic Deformation ◽  
Deformation Behavior ◽  
Room Temperature ◽  
Low Cycle Fatigue ◽  
Surface Coatings ◽  
Protective Film ◽  
Cycle Fatigue ◽  
Environmental Embrittlement ◽  
Tension And Compression

ABSTRACTThe monotonie mechanical behavior in tension and compression of FeAl has been well documented. However, very little work has been done on the cyclic deformation behavior of this material. In this work, the behavior of FeAl (42 at. % Al) under low cycle fatigue was studied, including the effects of test environments and surface coatings. It was found that the fatigue life of this alloy is limited by environmental embrittlement. This embrittlement process can be equally well prevented by deformation in an oxygen environment or by coating the alloy with a protective film. The type of film applied appears to have little effect. Similar results were seen in monotonie testing.

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