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Effect of stacking fault energy on strength and ductility of nanostructured alloys: an evaluation with minimum solution hardening

Effect of stacking fault energy on strength and ductility of nanostructured alloys: an evaluation with minimum solution hardening
Effect of stacking fault energy on strength and ductility of nanostructured alloys: an evaluation with minimum solution hardening
The effect of stacking fault energy (SFE) on the mechanical properties was investigated in Ni–Co alloys which have minimum solution hardening effects. Cobalt reduces the SFE in nickel and this promotes grain refinement during processing and increases the dislocation and twin densities. A reduction in SFE increases strength and tensile ductility. The higher strength is due to grain refinement and higher dislocation and pre-existing twin densities whereas the higher ductility is attributed to a higher work hardening rate.
83-86
Sun, P-L.
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Zhao, Y.H.
4fea315b-8c7d-4bb1-badc-236b309ef228
Cooley, J.C.
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Kassner, M.E.
7a1450fc-e5b0-4edd-bcc2-5720f313f3cd
Horita, Z.
84a80017-cbaf-4713-8346-6f69ac7ea63e
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Lavernia, E.J
00ba1a0a-c3ee-4b62-80b9-948557360ba1
Zhu, Y.T.
ddbd5b30-13ca-45a6-9296-ed5b60811efb
Sun, P-L.
94f3e8f5-0ecf-4165-9ccd-80a0bb447868
Zhao, Y.H.
4fea315b-8c7d-4bb1-badc-236b309ef228
Cooley, J.C.
a90b3d1f-00bc-417a-8822-c4c37b36ad4d
Kassner, M.E.
7a1450fc-e5b0-4edd-bcc2-5720f313f3cd
Horita, Z.
84a80017-cbaf-4713-8346-6f69ac7ea63e
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Lavernia, E.J
00ba1a0a-c3ee-4b62-80b9-948557360ba1
Zhu, Y.T.
ddbd5b30-13ca-45a6-9296-ed5b60811efb

Sun, P-L., Zhao, Y.H., Cooley, J.C., Kassner, M.E., Horita, Z., Langdon, T.G., Lavernia, E.J and Zhu, Y.T. (2009) Effect of stacking fault energy on strength and ductility of nanostructured alloys: an evaluation with minimum solution hardening. Materials Science and Engineering: A, 525 (1-2), 83-86. (doi:10.1016/j.msea.2009.06.030).

Record type: Article

Abstract

The effect of stacking fault energy (SFE) on the mechanical properties was investigated in Ni–Co alloys which have minimum solution hardening effects. Cobalt reduces the SFE in nickel and this promotes grain refinement during processing and increases the dislocation and twin densities. A reduction in SFE increases strength and tensile ductility. The higher strength is due to grain refinement and higher dislocation and pre-existing twin densities whereas the higher ductility is attributed to a higher work hardening rate.

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More information

Published date: 2009
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 72352
URI: https://eprints.soton.ac.uk/id/eprint/72352
PURE UUID: 7c918766-7292-41a0-b943-5a22fc54a6f1
ORCID for T.G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 10 Feb 2010
Last modified: 20 Jul 2019 01:03

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