Fungi colonies effect on fatigue behavior of 7075Al alloy

• Published in: Engineering and Technology Journal Vol. 34; no. 8A; pp. 1483 - 1490
• Main Authors: al-Alkawi, Husayn Jasim Muhammad, Majid, Amir Hamid, Husayn, Fatimah Ali
• Format: Journal Article
• Language: English
• Published: Baghdad, Iraq University of Technology 01-08-2016; Unviversity of Technology- Iraq
• Subjects: corrosion fatigue; fungi colonies; shatt arab water
• ISSN: 1681-6900; 2412-0758
• DOI: 10.30684/etj.34.8A.1

The effect of fungi colonies on fatigue of 7075 aluminum alloys was studied for
specimens corroded at different media. 57 specimens of aluminum alloys were
submerged in Shat-Arab water (Sh.A.W) for four months at different conditions (at
light media (9 fungi colonies), dark media (80 fungi colonies) )and then applying
constant fatigue tests after removing the specimens from the corrosion media . The
results show that the fungi colonies can corroded Al alloy the reduction of precorroded
specimens at light media (9 fungi colonies) was 13% and for specimens at
dark media (80 fungi colonies) was 22% , and a nonlinear damage model was
proposed to predict the cumulative corrosion fatigue life