An overview: fatigue behaviour of ultrafine-grained metals and alloys (in issue on fatigue lifetime prediction of metals based on microstructural behaviour)
An overview: fatigue behaviour of ultrafine-grained metals and alloys (in issue on fatigue lifetime prediction of metals based on microstructural behaviour)
The objectives of the present study were to assess and to optimize the fatigue behaviour in strain-controlled tests of different ultrafine-grained (UFG) metals and alloys (Cu, Al, AA6061, ?-brass) prepared by equal channel angular pressing (ECAP). Quite generally, the UFG materials investigated exhibited shorter fatigue lives in the low-cycle fatigue (LCF) regime than corresponding conventional grain (CG) size specimens. In all cases, the fatigue lives could be enhanced appreciably by a suitable heat treatment following ECAP without, however, paralleling the fatigue lives of the CG specimens. The microstructural reasons for this behaviour are discussed, and a microstructure-based fatigue life model for UFG materials is presented.
ultrafine-grained materials, AA6061, ?-brass, copper, aluminium, ECAP, fatigue life, annealing, modelling
1001-1010
Höppel, H.W.
1bd566e2-69b8-4b98-b750-fad00d612542
Kautz, M.
615a5832-c357-431b-9f2e-2947202adc6d
Xu, C.
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Murashkin, M.
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Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Valiev, R.Z.
f32c36f3-ce3a-4531-b8ef-0b18ad6626da
Mughrabi, H.
7978abee-e5b7-45f7-a50c-39053c21a325
2006
Höppel, H.W.
1bd566e2-69b8-4b98-b750-fad00d612542
Kautz, M.
615a5832-c357-431b-9f2e-2947202adc6d
Xu, C.
66441ee5-1017-4177-abb2-7875c09bdc66
Murashkin, M.
1042e66c-2a45-4d43-9b50-bd8aa3165938
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Valiev, R.Z.
f32c36f3-ce3a-4531-b8ef-0b18ad6626da
Mughrabi, H.
7978abee-e5b7-45f7-a50c-39053c21a325
Höppel, H.W., Kautz, M., Xu, C., Murashkin, M., Langdon, T.G., Valiev, R.Z. and Mughrabi, H.
(2006)
An overview: fatigue behaviour of ultrafine-grained metals and alloys (in issue on fatigue lifetime prediction of metals based on microstructural behaviour).
International Journal of Fatigue, 28 (0142-1123), .
(doi:10.1016/j.ijfatigue.2005.08.014).
Abstract
The objectives of the present study were to assess and to optimize the fatigue behaviour in strain-controlled tests of different ultrafine-grained (UFG) metals and alloys (Cu, Al, AA6061, ?-brass) prepared by equal channel angular pressing (ECAP). Quite generally, the UFG materials investigated exhibited shorter fatigue lives in the low-cycle fatigue (LCF) regime than corresponding conventional grain (CG) size specimens. In all cases, the fatigue lives could be enhanced appreciably by a suitable heat treatment following ECAP without, however, paralleling the fatigue lives of the CG specimens. The microstructural reasons for this behaviour are discussed, and a microstructure-based fatigue life model for UFG materials is presented.
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Published date: 2006
Keywords:
ultrafine-grained materials, AA6061, ?-brass, copper, aluminium, ECAP, fatigue life, annealing, modelling
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 43661
URI: http://eprints.soton.ac.uk/id/eprint/43661
ISSN: 0142-1123
PURE UUID: 99722665-3b3e-494d-9da6-8024ada6a0ba
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Date deposited: 25 Jan 2007
Last modified: 16 Mar 2024 03:28
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Contributors
Author:
H.W. Höppel
Author:
M. Kautz
Author:
C. Xu
Author:
M. Murashkin
Author:
R.Z. Valiev
Author:
H. Mughrabi
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