Modelling strengthening mechanisms in beta-type Ti alloys
Modelling strengthening mechanisms in beta-type Ti alloys
An integral modelling approach for understanding the strengthening mechanisms in Ti alloys is presented and applied to alloys undergoing deformation via dislocation slip. The model incorporates contributions from solid solution, grain boundary, dislocation forest and strain hardening. The metal forming and thermomechanical processing factors influence both grain size and the stored strain energy. The strain hardening of Ti-Fe-Sn-Nb alloys was modelled by considering dislocation accumulation and annihilation terms. By tailoring the contribution of each strengthening effect, the yield stress and plasticity of advanced Ti alloys can be optimised.
Dislocation theory, Plasticity modelling, Strengthening mechanisms, Ti alloys
156-160
Zhao, G.-H.
7f8c3487-2fb2-4761-bafd-81a60533a55d
Liang, X.Z.
a3a45c11-e85d-43e7-82a7-15192ec48bd2
Kim, B.
9dfa3c76-d622-49cb-a204-9da78a3aea1f
Rivera-Díaz-del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
17 April 2019
Zhao, G.-H.
7f8c3487-2fb2-4761-bafd-81a60533a55d
Liang, X.Z.
a3a45c11-e85d-43e7-82a7-15192ec48bd2
Kim, B.
9dfa3c76-d622-49cb-a204-9da78a3aea1f
Rivera-Díaz-del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
Zhao, G.-H., Liang, X.Z., Kim, B. and Rivera-Díaz-del-Castillo, P.E.J.
(2019)
Modelling strengthening mechanisms in beta-type Ti alloys.
Materials Science and Engineering: A, 756, .
(doi:10.1016/j.msea.2019.04.027).
Abstract
An integral modelling approach for understanding the strengthening mechanisms in Ti alloys is presented and applied to alloys undergoing deformation via dislocation slip. The model incorporates contributions from solid solution, grain boundary, dislocation forest and strain hardening. The metal forming and thermomechanical processing factors influence both grain size and the stored strain energy. The strain hardening of Ti-Fe-Sn-Nb alloys was modelled by considering dislocation accumulation and annihilation terms. By tailoring the contribution of each strengthening effect, the yield stress and plasticity of advanced Ti alloys can be optimised.
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1-s2.0-S0921509319304733-main
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Accepted/In Press date: 5 April 2019
e-pub ahead of print date: 11 April 2019
Published date: 17 April 2019
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Publisher Copyright:
© 2019 The Authors
Keywords:
Dislocation theory, Plasticity modelling, Strengthening mechanisms, Ti alloys
Identifiers
Local EPrints ID: 491892
URI: http://eprints.soton.ac.uk/id/eprint/491892
ISSN: 0921-5093
PURE UUID: 5765e792-23d5-4030-a5d9-e334f4431264
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Date deposited: 05 Jul 2024 16:37
Last modified: 12 Jul 2024 02:13
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Contributors
Author:
G.-H. Zhao
Author:
X.Z. Liang
Author:
B. Kim
Author:
P.E.J. Rivera-Díaz-del-Castillo
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