Low cycle fatigue of precipitation hardened aluminum alloy
Other Title(s)
كلال الدورات المخفضة في سبيكة المنيوم قابلية التصليد بالترسيب
Joint Authors
Mahmud, Sayf Khalid
al-Fattal, Zafir Sadiq
Source
Engineering and Technology Journal
Issue
Vol. 33, Issue 9A (30 Sep. 2015), pp.2146-2158, 13 p.
Publisher
Publication Date
2015-09-30
Country of Publication
Iraq
No. of Pages
13
Main Subjects
Topics
Abstract EN
In this work, the influence of different heat treatments on the mechanical properties and fatigue life under low cycles of wrought 7075 aluminum alloy was experimentally investigated.
The heat treatments included peak ageing (T6), over ageing (T73) and annealing (O).The flat fatigue specimens were subjected to constant reverse bending load.
The tests were performed at the laboratory environment with a frequency of 23.6 Hz and at a stress ratio (R) of -1.For each temper, strain-life graphs were obtained for specimens with notches in the form of central cylindrical holes made by drilling.
The fatigue resistance of specimens with notches was compared to the results for notch-free specimens.
It was observed that the presence of a stress raiser, such as a drilled hole, lowers the fatigue life for all tempers.
However, the notch sensitivity of the fatigue life was different for each temper.
The fatigue crack growth rate of T73 and annealed temper was investigated; the results showed that T73 treated sample exhibits higher crack growth resistance.
Paris` equation was derived for each temper.
American Psychological Association (APA)
al-Fattal, Zafir Sadiq& Mahmud, Sayf Khalid. 2015. Low cycle fatigue of precipitation hardened aluminum alloy. Engineering and Technology Journal،Vol. 33, no. 9A, pp.2146-2158.
https://search.emarefa.net/detail/BIM-655418
Modern Language Association (MLA)
al-Fattal, Zafir Sadiq& Mahmud, Sayf Khalid. Low cycle fatigue of precipitation hardened aluminum alloy. Engineering and Technology Journal Vol. 33, no. 9A (2015), pp.2146-2158.
https://search.emarefa.net/detail/BIM-655418
American Medical Association (AMA)
al-Fattal, Zafir Sadiq& Mahmud, Sayf Khalid. Low cycle fatigue of precipitation hardened aluminum alloy. Engineering and Technology Journal. 2015. Vol. 33, no. 9A, pp.2146-2158.
https://search.emarefa.net/detail/BIM-655418
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 2157-2158
Record ID
BIM-655418