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Fatigue behavior of SiC particulate reinforced spray-formed 7XXX series Al-alloys
Highlights ► Fatigue analysis of SiC particulate reinforced spray formed aluminum alloys. ► Testing performed in tension with a constant amplitude axial fatigue cycle. ► Reinforced spray formed alloys have improved fatigue performance. ► Reinforced spray formed alloys experience low crack growth.
Abstract This paper presents the fatigue results obtained in high strength spray-formed 7XXX series Al-alloys reinforced with the addition of silicon carbide particulate. This is one in a series of papers reporting on experimental studies completed to analyze the effects of processing and composition on numerous properties of these 7XXX series Al-alloys. In this study, testing was performed in tension on specimens with a constant amplitude axial fatigue cycle of R =−1.0. Test results were also compared with results available in the literature. The metal matrix composite materials displayed a large increase in fatigue strength in comparison to commercial ingot metallurgy 7075-T6 and T7 alloys. The enhanced fatigue performance of the spray formed alloys is attributed to low crack growth rates, resulting from inhomogeneous slip.
Fatigue behavior of SiC particulate reinforced spray-formed 7XXX series Al-alloys
Highlights ► Fatigue analysis of SiC particulate reinforced spray formed aluminum alloys. ► Testing performed in tension with a constant amplitude axial fatigue cycle. ► Reinforced spray formed alloys have improved fatigue performance. ► Reinforced spray formed alloys experience low crack growth.
Abstract This paper presents the fatigue results obtained in high strength spray-formed 7XXX series Al-alloys reinforced with the addition of silicon carbide particulate. This is one in a series of papers reporting on experimental studies completed to analyze the effects of processing and composition on numerous properties of these 7XXX series Al-alloys. In this study, testing was performed in tension on specimens with a constant amplitude axial fatigue cycle of R =−1.0. Test results were also compared with results available in the literature. The metal matrix composite materials displayed a large increase in fatigue strength in comparison to commercial ingot metallurgy 7075-T6 and T7 alloys. The enhanced fatigue performance of the spray formed alloys is attributed to low crack growth rates, resulting from inhomogeneous slip.
Fatigue behavior of SiC particulate reinforced spray-formed 7XXX series Al-alloys
Sharma, M.M. (author) / Ziemian, C.W. (author) / Eden, T.J. (author)
2011-04-05
6 pages
Article (Journal)
Electronic Resource
English
Fatigue behavior of SiC particulate reinforced spray-formed 7XXX series Al-alloys
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