scholarly journals Defect tolerance of a gamma titanium aluminide alloy

2011 ◽  
Vol 10 ◽  
pp. 3677-3682 ◽  
Author(s):  
M. Filippini ◽  
S. Beretta ◽  
L. Patriarca ◽  
G. Pasquero ◽  
S. Sabbadini
Keyword(s):  
Titanium Aluminide ◽  
Defect Tolerance ◽  
Gamma Titanium Aluminide ◽  
Gamma Titanium ◽  
Titanium Aluminide Alloy

Fatigue Sensitivity to Small Defects of a Gamma–Titanium–Aluminide Alloy

2012 ◽  
pp. 278-294
Author(s):  
Mauro Filippini ◽  
Stefano Beretta ◽  
Luca Patriarca ◽  
Giuseppe Pasquero ◽  
Silvia Sabbadini
Keyword(s):  
Titanium Aluminide ◽  
Gamma Titanium Aluminide ◽  
Gamma Titanium ◽  
Titanium Aluminide Alloy ◽  
Fatigue Sensitivity

Tensile Fracture Behavior of a Cast Gamma-Titanium Aluminide

1990 ◽  
Vol 213 ◽  
Author(s):  
V. Seetharaman ◽  
R. L. Goetz ◽  
S. L. Semiatin
Keyword(s):  
Titanium Aluminide ◽  
Fracture Behavior ◽  
Tensile Fracture ◽  
Intergranular Cracking ◽  
Gamma Titanium Aluminide ◽  
Gamma Titanium ◽  
Titanium Aluminide Alloy ◽  
Tension Testing ◽  
Open Die Forging ◽  
Deformation Modes

ABSTRACTThe fracture behavior of a cast gamma-titanium-aluminide alloy (Ti-49.5A1–2.5Nb-l. 1Mn) during deformation processing was investigated using hot-tension testing and isothermal-forging experiments. In uniaxial tension, fracture ductility increased with an increase in the test temperature and a decrease in the imposed strain rate. During open-die forging of this alloy under isothermal conditions, tensile stresses generated due to frictional effects and the associated inhomogeneous plastic deformation led to free-surface fracture via intergranular cracking. The failure observations under these two deformation modes were correlated successfully using a tensile-damage criterion.

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