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Simulation of coarsening of inter-lath cementite in a Q&T steel during tempering

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Ju, Yulin, Davis, Claire and Strangwood, Martin (2020) Simulation of coarsening of inter-lath cementite in a Q&T steel during tempering. Materials Science and Technology, 36 (13). pp. 1440-1456. doi:10.1080/02670836.2020.1790097

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Official URL: https://doi.org/10.1080/02670836.2020.1790097

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Abstract

A mathematical model, using the finite difference approach, was established to consider tempering in a low carbon low alloy quenched and tempered steel based on experimental observations, treating the coarsening of a larger particle and dissolution of a smaller particle as a continuous and simultaneous process for coupled inter-lath cementite systems. The diffusion of Mn was simplified as a 1D diffusion and occurred between the interface elements and their adjacent elements in the model. The mathematical model predicted the shortest dissolution times for smaller particles in coupled inter-lath cementite systems, which agreed well with experimental observations on tempering from 2 to 4 h. However, the larger particle coarsening was under predicted due to the simplification of considering two particle arrangements.

Item Type: Journal Article
Subjects: T Technology > TS Manufactures
Divisions: Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Steel, Steel -- Heat treatment -- Standards, Steel -- Quenching -- Standards, Tempering -- Standards, Finite element method
Journal or Publication Title: Materials Science and Technology
Publisher: Maney Publishing
ISSN: 0267-0836
Official Date: 9 July 2020
Dates:
DateEvent
9 July 2020Published
27 June 2020Accepted
Date of first compliant deposit: 6 August 2020
Volume: 36
Number: 13
Page Range: pp. 1440-1456
DOI: 10.1080/02670836.2020.1790097
Status: Peer Reviewed
Publication Status: Published
Publisher Statement: “This is an Accepted Manuscript of an article published by Taylor & Francis in Materials Science and Technology on 09/07/2020, available online: http://www.tandfonline.com/10.1080/02670836.2020.1790097
Access rights to Published version: Restricted or Subscription Access

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