The Cyclic Fatigue and Final Fracture Behavior of a Titanium Alloy Taken from Weldments: Influence of Load Ratio and Orientation

2010 ◽  
pp. 355-379 ◽  
Author(s):  
Udaykar Bathini ◽  
T.S. Srivatsan ◽  
Anil Patnaik ◽  
C.C. Menzemer ◽  
T. Quick
Keyword(s):  
Titanium Alloy ◽  
Fracture Behavior ◽  
Load Ratio ◽  
Cyclic Fatigue ◽  
Final Fracture

An Investigation of the Cyclic Fatigue and Final Fracture Behavior of a Titanium Alloy

2008 ◽  
Vol 378-379 ◽  
pp. 271-298 ◽  
Author(s):  
T.S. Srivatsan ◽  
Mithun Kuruvilla ◽  
Lisa Park
Keyword(s):  
Titanium Alloy ◽  
Fatigue Life ◽  
Fracture Behavior ◽  
Stress Amplitude ◽  
Load Ratio ◽  
Cyclic Fatigue ◽  
Cyclic Stress ◽  
Fatigue Properties ◽  
Final Fracture ◽  
Stress Load

In this technical manuscript the cyclic stress amplitude controlled fatigue properties and fracture behavior of an emerging titanium alloy (referred to by its designation as ATI 425TM by the manufacturer) is presented and discussed. The alloy was provided as rod stock in the fully annealed condition. Test specimens of the as-received alloy were cyclically deformed under total stress amplitude control at two different stress ratios (R = 0.1 and R = 0.3) with the purpose of establishing the conjoint and mutually interactive influences of magnitude of cyclic stress, load ratio and intrinsic microstructural effects on cyclic fatigue life, final fracture behavior and viable mechanisms governing failure at the microscopic level. The high cycle fatigue resistance of this titanium alloy is described in terms of maximum stress, load ratio, and maximum elastic strain. The final fracture behavior of the alloy under cyclic loading conditions is discussed in light of the mutually interactive influences of intrinsic microstructural features, magnitude of cyclic stress, load ratio and resultant fatigue life.

The cyclic fatigue and final fracture behavior of aluminum alloy 2524

2002 ◽  
Vol 23 (2) ◽  
pp. 129-139 ◽  
Author(s):  
T.S Srivatsan ◽  
D Kolar ◽  
P Magnusen
Keyword(s):  
Aluminum Alloy ◽  
Fracture Behavior ◽  
Cyclic Fatigue ◽  
Final Fracture

The quasi-static and cyclic fatigue fracture behavior of an emerging titanium alloy

2013 ◽  
Vol 2 (6) ◽  
pp. 348-355 ◽  
Author(s):  
Kannan Manigandan ◽  
Tirumalai S. Srivatsan ◽  
Gregory N. Morscher
Keyword(s):  
Titanium Alloy ◽  
Fatigue Fracture ◽  
Fracture Behavior ◽  
Cyclic Fatigue ◽  
Fatigue Fracture Behavior

Influence of Carbon Nanotubes and Processing on Cyclic Fatigue and Final Fracture Behavior of a Magnesium Alloy

2011 ◽  
Vol 410 ◽  
pp. 3-16
Author(s):  
Tirumalai S. Srivatsan ◽  
C. Godbole ◽  
Muralidharan Paramsothy ◽  
Manoj Gupta
Keyword(s):  
Carbon Nanotubes ◽  
Fatigue Life ◽  
Magnesium Alloy ◽  
Fracture Behavior ◽  
High Cycle Fatigue ◽  
Load Ratio ◽  
Cyclic Fatigue ◽  
Unreinforced Alloy ◽  
Cycle Fatigue ◽  
Percent Improvement

Carbon nanotubes (CNT)-reinforced magnesium alloy (AZ31) was fabricated using the technique of solidification processing followed by hot extrusion. Test specimens of both the composite and the unreinforced alloy were cyclically deformed at two different load ratios spanning tension-tension loading (R = 0.1) and fully-reversed tension-compression (R= -1) loading under total stress amplitude-control. A comparison of the CNT reinforced magnesium alloy with the unreinforced counterpart revealed well over two hundred percent improvement in cyclic fatigue life at load ratio of 0.1 and about two-hundred and fifty percent improvement in the high cycle fatigue life under conditions of fully-reversed loading [R= -1.0]. At all values of maximum stress, the high cycle fatigue response of both the reinforced and unreinforced magnesium alloy was found to degrade at the lower load ratio (-1.0). The synergistic and interactive influences of reinforcement and processing on microstructural development, cyclic fatigue life and kinetics governing fracture behavior are presented and briefly discussed.

scholarly journals Influence of Nickel Particle Reinforcement on Cyclic Fatigue and Final Fracture Behavior of a Magnesium Alloy Composite

Metals ◽  
2012 ◽  
Vol 2 (2) ◽  
pp. 143-169 ◽  
Author(s):  
Tirumalai S. Srivatsan ◽  
K. Manigandan ◽  
Chinmay Godbole ◽  
Muralidharan Paramsothy ◽  
Manoj Gupta
Keyword(s):  
Magnesium Alloy ◽  
Fracture Behavior ◽  
Nickel Particle ◽  
Cyclic Fatigue ◽  
Alloy Composite ◽  
Particle Reinforcement ◽  
Final Fracture
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