Fatigue crack initiation and early growth in a multiphase Al alloy included in a multilayer material system


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), 47-56. (doi:10.1179/026708304225010389).

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Description/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.

Item Type: Article
ISSNs: 0267-0836 (print)
Related URLs:
Keywords: fatigue crack initiation, fatigue crack growth, al-sn-si alloys
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences
ePrint ID: 22600
Date Deposited: 22 Mar 2006
Last Modified: 27 Mar 2014 18:11
Contact Email Address: ss@soton.ac.uk
URI: http://eprints.soton.ac.uk/id/eprint/22600

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