Fatigue in metallic alloys containing non-metallic particles

J.F. Knott; J.E. King

doi:10.1016/0261-3069(91)90107-F

Fatigue in metallic alloys containing non-metallic particles

J.F. Knott, J.E. King

Research output: Contribution to journal › Article › peer-review

Abstract

This paper examines the effects of non-metallic particles on fatigue performance and, in particular, their influence on fatigue crack propagation at high ΔK (K_max) levels. The nature and properties of a number of common non-metallic particles found in Fe- and Al- based alloys are described, and consideration is given to the consequences of mismatch of physical and chemical properties between particle and matrix. Effects of particles on fatigue in conventional alloys are illustrated and compared with the behaviour of Al/SiC_p MMC. The problems associated with developing particulate reinforced MMC with adequate fatigue crack growth resistance and toughness for structural applications are discussed. © 1991.

Original language	English
Pages (from-to)	67-74
Number of pages	8
Journal	Materials and Design
Volume	12
Issue number	2
DOIs	https://doi.org/10.1016/0261-3069(91)90107-F
Publication status	Published - Apr 1991

Keywords

materials science
fatigue metals and alloys
fatigue crack growth
fracture toughness
strain field
strengthening precipitates
metallurgy

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10.1016/0261-3069(91)90107-F

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abstract = "This paper examines the effects of non-metallic particles on fatigue performance and, in particular, their influence on fatigue crack propagation at high ΔK (Kmax) levels. The nature and properties of a number of common non-metallic particles found in Fe- and Al- based alloys are described, and consideration is given to the consequences of mismatch of physical and chemical properties between particle and matrix. Effects of particles on fatigue in conventional alloys are illustrated and compared with the behaviour of Al/SiCp MMC. The problems associated with developing particulate reinforced MMC with adequate fatigue crack growth resistance and toughness for structural applications are discussed. {\textcopyright} 1991.",

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AB - This paper examines the effects of non-metallic particles on fatigue performance and, in particular, their influence on fatigue crack propagation at high ΔK (Kmax) levels. The nature and properties of a number of common non-metallic particles found in Fe- and Al- based alloys are described, and consideration is given to the consequences of mismatch of physical and chemical properties between particle and matrix. Effects of particles on fatigue in conventional alloys are illustrated and compared with the behaviour of Al/SiCp MMC. The problems associated with developing particulate reinforced MMC with adequate fatigue crack growth resistance and toughness for structural applications are discussed. © 1991.

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KW - fatigue metals and alloys

KW - fatigue crack growth

KW - fracture toughness

KW - strain field

KW - strengthening precipitates

KW - metallurgy

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JO - Materials and Design

JF - Materials and Design

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Fatigue in metallic alloys containing non-metallic particles

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Keywords

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