Internal strains between grains during creep deformation of an austenitic stainless steel
Internal strains between grains during creep deformation of an austenitic stainless steel
Internal strains that develop between grains during creep of an austenitic stainless steel were measured using in situ neutron diffraction. The secondary creep pre-strained test specimens were considered. Measurements were undertaken before, during and post creep deformation at 550 °C. There was no measurable change of internal strains between grains during in situ creep for 4 h at 550 °C. In addition, the effect of increasing/reducing temperatures in a range from 470 to 550 °C on the internal strains was measured and interpreted with respect to contributions from thermal expansion/contraction. No further internal misfit strains between grains were created when specimen crept during the dwell time at 530, 510, 490 and 470 °C. Results are discussed with respect to (i) the general structure of self-consistent models and (ii) the optimised use of neutron sources for creep studies.
5809-5816
Chen, B.
be54a9a8-da2a-4e6f-ae0e-0b076be87daf
Hu, J.N.
92c52e0a-c515-4936-b713-96b9340e888d
Wang, Y.Q.
52ec3588-520e-4561-9f94-e589876fd072
Kabra, S.
7bd92446-6793-4d6e-855b-8fd2f8ce6ce8
Cocks, A.C.F.
58b0c2c2-5987-488d-80bb-8cea9dbbb7e9
Smith, D.J.
60377470-3beb-43bf-8d03-e7fcfe5e625f
Flewitt, P.E.J.
f4ac343e-c50c-45e0-8290-e43978274645
September 2015
Chen, B.
be54a9a8-da2a-4e6f-ae0e-0b076be87daf
Hu, J.N.
92c52e0a-c515-4936-b713-96b9340e888d
Wang, Y.Q.
52ec3588-520e-4561-9f94-e589876fd072
Kabra, S.
7bd92446-6793-4d6e-855b-8fd2f8ce6ce8
Cocks, A.C.F.
58b0c2c2-5987-488d-80bb-8cea9dbbb7e9
Smith, D.J.
60377470-3beb-43bf-8d03-e7fcfe5e625f
Flewitt, P.E.J.
f4ac343e-c50c-45e0-8290-e43978274645
Chen, B., Hu, J.N. and Wang, Y.Q.
,
et al.
(2015)
Internal strains between grains during creep deformation of an austenitic stainless steel.
Journal of Materials Science, 50, .
(doi:10.1007/s10853-015-9128-4).
Abstract
Internal strains that develop between grains during creep of an austenitic stainless steel were measured using in situ neutron diffraction. The secondary creep pre-strained test specimens were considered. Measurements were undertaken before, during and post creep deformation at 550 °C. There was no measurable change of internal strains between grains during in situ creep for 4 h at 550 °C. In addition, the effect of increasing/reducing temperatures in a range from 470 to 550 °C on the internal strains was measured and interpreted with respect to contributions from thermal expansion/contraction. No further internal misfit strains between grains were created when specimen crept during the dwell time at 530, 510, 490 and 470 °C. Results are discussed with respect to (i) the general structure of self-consistent models and (ii) the optimised use of neutron sources for creep studies.
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Accepted/In Press date: 23 May 2015
e-pub ahead of print date: 3 June 2015
Published date: September 2015
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Local EPrints ID: 489906
URI: http://eprints.soton.ac.uk/id/eprint/489906
ISSN: 0022-2461
PURE UUID: 8fb9840a-8b03-49da-9ae7-7c5165174282
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Date deposited: 07 May 2024 16:42
Last modified: 08 May 2024 02:08
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Author:
B. Chen
Author:
J.N. Hu
Author:
Y.Q. Wang
Author:
S. Kabra
Author:
A.C.F. Cocks
Author:
D.J. Smith
Author:
P.E.J. Flewitt
Corporate Author: et al.
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