A comparison of low cycle fatigue behaviour of UFG Al produced by different rolling techniques
Date
2013
Authors
Malekjani, S.
Hodgson, P.D.
Stanford, N.E.
Hilditch, T.B.
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Source details - Title: TMS 2013 annual meeting supplemental proceedings, 2013, Ch.51, pp.413-419
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Abstract
A commercially pure Al was subjected to cryo-rolling and asymmetric rolling to refine its microstructure to the ultrafine grain (UFG) regime. A slightly higher strength and elongation to failure was achieved by asymmetric rolling. However, UFG Al produced by asymmetric rolling showed considerably lower fatigue ductility under total strain control cyclic loading in comparison with cryo-rolled Al. Additionally, cyclic softening rate appeared strain rate insensitive in cryo-rolled Al whereas asymmetric rolled one appeared strain rate sensitive.
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Copyright 2013 The Minerals, Metals & Materials Society