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Effect of stress ratio and frequency on fatigue crack growth rate of 2618 aluminium alloy silicon carbide metal matrix composite
Nirbhay Singh Ram Khelawan G N Mathur
Volume 24 Issue 2 April 2001 pp 169-171
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https://www.ias.ac.in/article/fulltext/boms/024/02/0169-0171 -
Keywords
Aluminium alloy–SiC composite ;fatigue crack ;stress ratio. -
Abstract
Effect of stress ratio and frequency on the fatigue crack propagation of 2618 aluminium alloy–silicon carbide composite were investigated at ambient temperature. With the first set of specimens, the fatigue crack growth rates were studied at three frequencies of 1 Hz, 5 Hz and 10 Hz at a stress ratio of 0.1 whereas the effects of stress ratios of 0.1, 0.25 and 0.50 were studied with the second set of specimens. The study showed that the fatigue crack propagation behaviour of this metal matrix composite was influenced to an appreciable extent by the stress ratio, but not by the fatigue frequencies used in this investigation.
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Author Affiliations
Nirbhay Singh1 Ram Khelawan1 G N Mathur1
- Defence Materials & Stores Research & Development Establishment, GT Road, Kanpur 208 013, India
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Dates
- Published
- April 2001
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Bulletin of Materials Science
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