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Title: Study of fatigue behaviour of 7475 aluminium alloy
Authors: Verma, B B
Atkinson, J D
Kumar, M
Keywords: 7475 Aluminium alloy
fatigue life
fatigue crack growth
cyclic cleavage
ductile striations
Issue Date: 2001
Publisher: Indian Academy of Sciences
Citation: Bulletin of Material Science, Vol 24, No 2, P 231-236
Abstract: Fatigue properties of a thermomechanically treated 7475 aluminium alloy have been studied in the present investigation. The alloy exhibited superior fatigue life compared to conventional structural aluminium alloys and comparable stage II crack growth rate. It was also noticed that the fatigue crack initiated from a surface grain and the crack extension was dominated by ductile striations. Analysis also revealed that this alloy possessed fracture toughness and tensile properties superior to that noticed with other structural aluminium alloys. Therefore the use of this alloy can safely reduce the overall weight of the aircraft.
Description: Copyright for this article belongs to Indian Academy of Sciences
Appears in Collections:Journal Articles

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