Fatigue behavior of SiC particulate reinforced spray-formed 7XXX series Al-alloys

M. M. Sharma; C. W. Ziemian; T. J. Eden

doi:10.1016/j.matdes.2011.04.009

Fatigue behavior of SiC particulate reinforced spray-formed 7XXX series Al-alloys

M. M. Sharma, C. W. Ziemian, T. J. Eden

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35 Scopus citations

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.

Original language	English (US)
Pages (from-to)	4304-4309
Number of pages	6
Journal	Materials and Design
Volume	32
Issue number	8-9
DOIs	https://doi.org/10.1016/j.matdes.2011.04.009
State	Published - Sep 2011

All Science Journal Classification (ASJC) codes

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matdes.2011.04.009

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title = "Fatigue behavior of SiC particulate reinforced spray-formed 7XXX series Al-alloys",

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.",

author = "Sharma, {M. M.} and Ziemian, {C. W.} and Eden, {T. J.}",

note = "Funding Information: The authors would like to thank Naval Sea Systems Command for the financial support of this research under Contract No. N00039-97-D-0042, Delivery Order Nos. 0214 and 0215. ",

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AU - Sharma, M. M.

AU - Ziemian, C. W.

AU - Eden, T. J.

N1 - Funding Information: The authors would like to thank Naval Sea Systems Command for the financial support of this research under Contract No. N00039-97-D-0042, Delivery Order Nos. 0214 and 0215.

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N2 - 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.

AB - 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.

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Fatigue behavior of SiC particulate reinforced spray-formed 7XXX series Al-alloys

Abstract

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