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Published in: Journal of Materials Science 17/2006

01-09-2006

Investigations on the high cycle fatigue behaviour of stir cast AA 6061-SiCp composites

Authors: K. Mahadevan, K. Raghukandan, T. Senthilvelan, B. C. Pai, U. T. S. Pillai

Published in: Journal of Materials Science | Issue 17/2006

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Abstract

The room temperature high cycle fatigue behaviour of stir cast AA 6061-SiCp composites, with varying reinforcement percentage, is studied. The specimens were tested under fully reversed cyclic deformation in the peak aged condition. Composite with 20% reinforcement exhibit superior fatigue strength over other composites (with 10,15 and 25% reinforcement). The experimental results are correlated with scanning electron micrographs of the failed specimens. Two distinct morphologies namely, crack initiation/ propagation and fast fracture region, were present. Mode-I type cracking was found to have dominated the crack initiation. The final fracture mode was found to be ductile with nucleation, growth and coalescence of cracks in the matrix.

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Metadata
Title
Investigations on the high cycle fatigue behaviour of stir cast AA 6061-SiCp composites
Authors
K. Mahadevan
K. Raghukandan
T. Senthilvelan
B. C. Pai
U. T. S. Pillai
Publication date
01-09-2006
Publisher
Springer US
Published in
Journal of Materials Science / Issue 17/2006
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-006-0335-x

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