Fatigue crack initiation and early growth in a multiphase Al alloy included in a multilayer material system
Fatigue crack initiation and early growth in a multiphase Al alloy included in a multilayer material system
The fatigue properties of a multilayer material system employed in the manufacture of small automotive plain bearings are assessed. This comprised three layers; a multiphase Al - Sn - Si lining, a bonding Al interlayer, and a steel backing. The structure was found to exhibit complex fatigue behaviour; including multiple crack initiations, highly microstructural crack growth, and complex crack interaction, coalescence, and deflection events. Key microstructural features are identified for both initiation and early propagation of fatigue cracks within the lining material. The effects of both the layered structure and service environment on fatigue crack propagation behaviour are assessed. This provides valuable information for the development of new lining alloys for future automotive bearing designs.
fatigue crack initiation, fatigue crack growth, al-sn-si alloys
47-56
Joyce, M.R.
e294d1ba-c37a-4149-b9c0-15095d643d3b
Syngellakis, S.
1279f4e2-97ec-44dc-b4c2-28f5ac9c2f88
Reed, P.A.S.
8b79d87f-3288-4167-bcfc-c1de4b93ce17
2004
Joyce, M.R.
e294d1ba-c37a-4149-b9c0-15095d643d3b
Syngellakis, S.
1279f4e2-97ec-44dc-b4c2-28f5ac9c2f88
Reed, P.A.S.
8b79d87f-3288-4167-bcfc-c1de4b93ce17
Joyce, M.R., Syngellakis, S. and Reed, P.A.S.
(2004)
Fatigue crack initiation and early growth in a multiphase Al alloy included in a multilayer material system.
Materials Science and Technology, 20 (1), .
(doi:10.1179/026708304225010389).
Abstract
The fatigue properties of a multilayer material system employed in the manufacture of small automotive plain bearings are assessed. This comprised three layers; a multiphase Al - Sn - Si lining, a bonding Al interlayer, and a steel backing. The structure was found to exhibit complex fatigue behaviour; including multiple crack initiations, highly microstructural crack growth, and complex crack interaction, coalescence, and deflection events. Key microstructural features are identified for both initiation and early propagation of fatigue cracks within the lining material. The effects of both the layered structure and service environment on fatigue crack propagation behaviour are assessed. This provides valuable information for the development of new lining alloys for future automotive bearing designs.
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Published date: 2004
Keywords:
fatigue crack initiation, fatigue crack growth, al-sn-si alloys
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Local EPrints ID: 22600
URI: http://eprints.soton.ac.uk/id/eprint/22600
ISSN: 0267-0836
PURE UUID: 3e148fbf-a4e8-435b-8c49-d1af89950ac1
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Date deposited: 22 Mar 2006
Last modified: 16 Mar 2024 02:44
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Author:
M.R. Joyce
Author:
S. Syngellakis
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