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Quantitative assessment of preferential fatigue initiation sites in a multi-phase aluminium alloy

Quantitative assessment of preferential fatigue initiation sites in a multi-phase aluminium alloy
Quantitative assessment of preferential fatigue initiation sites in a multi-phase aluminium alloy
Complex multi-phase Al–Sn–Si alloys are commonly employed in the manufacture of small automotive plain bearings. The fundamental fatigue initiation behaviour of this class of alloys is currently not well understood. A range of analytical techniques were applied to investigate preferential initiation site location and to attempt to identify critical microstructural features. It was apparent from experimental studies that points of fatigue crack initiation are associated with the Si secondary phase. Using tessellation approaches and subsequently both adaptive numerical modelling and micro-scale finite element modelling allowed the identification of features affecting the probability that a given Si phase would initiate a fatigue crack.
adaptive numerical modelling, aluminium alloys, fatigue, finite element analysis
8756-758X
1025-1036
Joyce, M.R.
e294d1ba-c37a-4149-b9c0-15095d643d3b
Lee, K.K.
9fec08f0-7782-4d2e-9313-73ed74fd8d53
Syngellakis, S.
1279f4e2-97ec-44dc-b4c2-28f5ac9c2f88
Reed, P.A.S.
8b79d87f-3288-4167-bcfc-c1de4b93ce17
Joyce, M.R.
e294d1ba-c37a-4149-b9c0-15095d643d3b
Lee, K.K.
9fec08f0-7782-4d2e-9313-73ed74fd8d53
Syngellakis, S.
1279f4e2-97ec-44dc-b4c2-28f5ac9c2f88
Reed, P.A.S.
8b79d87f-3288-4167-bcfc-c1de4b93ce17

Joyce, M.R., Lee, K.K., Syngellakis, S. and Reed, P.A.S. (2004) Quantitative assessment of preferential fatigue initiation sites in a multi-phase aluminium alloy. Fatigue & Fracture of Engineering Materials & Structures, 27 (11), 1025-1036. (doi:10.1111/j.1460-2695.2004.00815.x).

Record type: Article

Abstract

Complex multi-phase Al–Sn–Si alloys are commonly employed in the manufacture of small automotive plain bearings. The fundamental fatigue initiation behaviour of this class of alloys is currently not well understood. A range of analytical techniques were applied to investigate preferential initiation site location and to attempt to identify critical microstructural features. It was apparent from experimental studies that points of fatigue crack initiation are associated with the Si secondary phase. Using tessellation approaches and subsequently both adaptive numerical modelling and micro-scale finite element modelling allowed the identification of features affecting the probability that a given Si phase would initiate a fatigue crack.

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Published date: 2004
Keywords: adaptive numerical modelling, aluminium alloys, fatigue, finite element analysis

Identifiers

Local EPrints ID: 22895
URI: http://eprints.soton.ac.uk/id/eprint/22895
ISSN: 8756-758X
PURE UUID: 5c94ee87-528f-4d4a-bdc2-abc8ee048683
ORCID for P.A.S. Reed: ORCID iD orcid.org/0000-0002-2258-0347

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Date deposited: 21 Mar 2006
Last modified: 16 Mar 2024 02:44

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Contributors

Author: M.R. Joyce
Author: K.K. Lee
Author: S. Syngellakis
Author: P.A.S. Reed ORCID iD

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