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Modelling recovery kinetics in high-strength martensitic steels

Modelling recovery kinetics in high-strength martensitic steels
Modelling recovery kinetics in high-strength martensitic steels

The decrease in dislocation density and hence the high strength loss can be modelled during martensite tempering as a recovery process. In this work, an innovative approach is presented to understand the role of silicon associated with the inhibition of the recovery rate. A phenomenological model is presented, where a combination of cross-slip and solute drag is identified as the main governing mechanism for recovery up to 450 (Formula presented.) C, from where it is postulated that recrystallisation occurs.

cross-slip, dislocations, microstructural characterisation, Recovery, solute drag, tempered martensite
0950-0839
280-286
Kim, B.
da2abcc4-50ba-40f2-b9f7-19568c25c780
San-Martin, D.
3cb4e081-1f6f-4f63-a25f-30613c3288a1
Rivera-Díaz-del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
Kim, B.
da2abcc4-50ba-40f2-b9f7-19568c25c780
San-Martin, D.
3cb4e081-1f6f-4f63-a25f-30613c3288a1
Rivera-Díaz-del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2

Kim, B., San-Martin, D. and Rivera-Díaz-del-Castillo, P.E.J. (2017) Modelling recovery kinetics in high-strength martensitic steels. Philosophical Magazine Letters, 97 (7), 280-286. (doi:10.1080/09500839.2017.1342048).

Record type: Article

Abstract

The decrease in dislocation density and hence the high strength loss can be modelled during martensite tempering as a recovery process. In this work, an innovative approach is presented to understand the role of silicon associated with the inhibition of the recovery rate. A phenomenological model is presented, where a combination of cross-slip and solute drag is identified as the main governing mechanism for recovery up to 450 (Formula presented.) C, from where it is postulated that recrystallisation occurs.

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Accepted/In Press date: 6 June 2017
e-pub ahead of print date: 28 June 2017
Published date: 3 July 2017
Additional Information: Publisher Copyright: © 2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
Keywords: cross-slip, dislocations, microstructural characterisation, Recovery, solute drag, tempered martensite

Identifiers

Local EPrints ID: 491891
URI: http://eprints.soton.ac.uk/id/eprint/491891
DOI: doi:10.1080/09500839.2017.1342048
ISSN: 0950-0839
PURE UUID: 526426b2-6eed-4c1b-87e4-c6296d1f109d
ORCID for P.E.J. Rivera-Díaz-del-Castillo: ORCID iD orcid.org/0000-0002-0419-8347

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Date deposited: 05 Jul 2024 16:37
Last modified: 12 Jul 2024 02:13

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Contributors

Author: B. Kim
Author: D. San-Martin
Author: P.E.J. Rivera-Díaz-del-Castillo ORCID iD

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