High-Temperature Fatigue Crack Growth Resistance of Thermo-Mechanically and Heat Treated Cast Ti-Si-Al-Zr Composites

2004 ◽  
pp. 235-240
Author(s):  
B. Vasyliv ◽  
A. Ivasyshyn ◽  
O. Ostash ◽  
S. Firstov ◽  
V. Mazur ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
High Temperature ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Crack Growth Resistance ◽  
Fatigue Crack Growth Resistance ◽  
High Temperature Fatigue ◽  
Heat Treated

Effect of Microstructure on Fatigue Crack Growth Resistance of Magnesium Alloy under Biaxial Stress

2005 ◽  
Vol 297-300 ◽  
pp. 1559-1564 ◽  
Author(s):  
Yasumi Ito ◽  
Akira Shimamoto
Keyword(s):  
Fatigue Crack ◽  
High Temperature ◽  
Magnesium Alloy ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Temperature Region ◽  
Heat Treating ◽  
Crack Growth Resistance ◽  
High Temperature Region ◽  
Fatigue Crack Growth Resistance

Fatigue crack propagation tests are conducted on magnesium alloy, cruciform specimens under biaxial and uniaxial loadings by using the biaxial fatigue tester which was developed by the authors. We investigate the effect of microstructures of specimens on fatigue crack growth resistance under biaxial stresses. From electron-microscope observations of a fatigue fracture and microstructure observations, it becomes clear that the mechanical properties of a magnesium-alloy, AZ31B, are greatly influenced by the diameter of crystal grains. We find that static tensile strength falls by heat-treating in the high temperature region where the diameter of crystal grains of an X-Y plane becomes large. We also find that the crack progress velocity under equal biaxial stresses gets faster by heat-treating in the high temperature region where the diameter of crystal grain of a Z-X plane becomes large.

Super Light Alloy Al-Cu-Li-Fatigue Crack Growth Resistance at Temperatures 293 and 77K

2000 ◽  
pp. 113-118
Author(s):  
V. V. Eremenko ◽  
Yu. A. Pokhil ◽  
L. F. Yakovenko ◽  
E. N. Aleksenko ◽  
I. N. Fridlyander
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Crack Growth Resistance ◽  
Light Alloy ◽  
Fatigue Crack Growth Resistance
Sign in / Sign up

Export Citation Format

Share Document