Affiliation:
1. University of Southampton
2. University of Loughborough
3. Loughborough University
Abstract
Fatigue initiation behaviour in three multi-component Al-Si casting alloys with varying
Si content is compared using a range of microscopy and analytical techniques. A higher proportion
of stiffer secondary phases leads to load transfer effects reducing particle cracking and
particle/matrix debonding. Si appears stronger than the Al9FeNi phase, which cracks and debonds to
form initiation sites preferentially over Si. Reducing Si content results in clusters of intermetallics
forming, and increased porosity. The effect of porosity, combined with mesoscopic load transfer
effects to the high volume fraction intermetallic regions make these potent crack initiation sites in
low silicon alloys.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference14 articles.
1. Zhang, B., D.R. Poirier, and W. Chen: Met and Mats Trans A:, 1999. 30(10): pp.2659-2666.
2. Edwards, W.M.: et al. Proc. ICAA8, Jul 2-5. 2002. Cambridge, United Kingdom.
3. Wang, Q.G., D. Apelian, and D.A. Lados,: Journal of Light Metals, 2001. 1(1): pp.73-84.
4. Gall, K., et al.: Met and Mats Trans A, 1999. 30A(12): pp.3079-3088.
5. Stolarz, J., O. Madelaine-Dupuich, and T. Magnin: Mats. Sci. Eng. A, 2001. 299(1-2): p.275.
Cited by
20 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献