Role of crystallographic orientation and grain boundaries in fatigue crack propagation in used pearlitic rail steel

2018 ◽  
Vol 722 ◽  
pp. 147-155 ◽  
Author(s):  
Mohammad Masoumi ◽  
Edwan Anderson Ariza ◽  
Amilton Sinatora ◽  
Helio Goldenstein
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Grain Boundaries ◽  
Fatigue Crack Propagation ◽  
Crystallographic Orientation ◽  
Rail Steel ◽  
Pearlitic Rail Steel

The Development of Fatigue Crack Propagation Models for Engineering Applications at Elevated Temperatures

1975 ◽  
Vol 97 (4) ◽  
pp. 289-297 ◽  
Author(s):  
B. Tomkins
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Elevated Temperatures ◽  
Failure Process ◽  
Propagation Models ◽  
Creep Fatigue ◽  
Creep Cavitation ◽  
Crack Propagation Process

The value of modelling the fatigue crack propagation process is discussed and current models are examined in the light of increasing knowledge of crack tip deformation. Elevated temperature fatigue is examined in detail as an area in which models could contribute significantly to engineering design. A model is developed which examines the role of time-dependent creep cavitation on the failure process in an interactive creep-fatigue situation.

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