Spike Overload and Humidity Effects on Fatigue Crack Delay in Al 7075-T651

2009 ◽  
pp. 101-101-12 ◽  
Author(s):  
O Buck ◽  
JD Frandsen ◽  
HL Marcus
Keyword(s):  
Fatigue Crack ◽  
Humidity Effects ◽  
Al 7075

3D time-resolved observations of corrosion and corrosion-fatigue crack initiation and growth in peak-aged Al 7075 using synchrotron X-ray tomography

2018 ◽  
Vol 138 ◽  
pp. 340-352 ◽  
Author(s):  
Tyler J. Stannard ◽  
Jason J. Williams ◽  
Sudhanshu S. Singh ◽  
Arun Sundar Sundaram Singaravelu ◽  
Xianghui Xiao ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Crack Initiation ◽  
Corrosion Fatigue ◽  
Fatigue Crack Initiation ◽  
Time Resolved ◽  
X Ray ◽  
Corrosion Fatigue Crack ◽  
Al 7075 ◽  
Peak Aged

scholarly journals Probabilistic fatigue crack growth assessment of Al 7075-T6 aerospace component

2017 ◽  
Vol 5 ◽  
pp. 430-437 ◽  
Author(s):  
Ahmed Bahloul ◽  
Amal Ben Ahmed ◽  
Chokri Bouraoui
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Al 7075 ◽  
Growth Assessment

Effect of Heat Treatment and Cryotreatment on the Fatigue Crack Growth in Aluminium 7075 Alloy

2020 ◽  
Vol 12 (4) ◽  
Author(s):  
P.C. Arunakumara ◽  
D. Venkatesh ◽  
K.R. Phaneesh
Keyword(s):  
Heat Treatment ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Structural Changes ◽  
Cryogenic Treatment ◽  
Vital Role ◽  
Fatigue Load ◽  
Al 7075 ◽  
7075 Alloy

Al 7075 is an aluminium alloy with zinc as major element. Al 7075 is commonly used in aircraft components, especially for critical parts like wing and fuselage components. In present investigation Al 7075 has been selected subjected to annealing, cryogenic treatment and the combination of annealing and cryogenic treatment for the study of fatigue crack growth subjected to fatigue load at constant amplitude. Specimens were subjected to fatigue crack growth as per ASTM E-647 standards and the results of fatigue crack growth were compared. NASGRO software was used to predict the fatigue crack growth (FCG) and the results are validated using experimental results. Microstructure analysis of metallic specimens was also carried out to study the micro structural changes in specimens undergoing heat treatment and cryotreatment. From the present investigation it has been observed that cryogenic treatment and heat treatments plays vital role in improving fatigue life of Al 7075 components.

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