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Effect of intercritical annealing on the mechanical properties of dual-phase steel

James Ayres, David Penney Orcid Logo, Peter Evans, Richard Underhill

Ironmaking and Steelmaking, Pages: 1 - 7

Swansea University Author: David Penney Orcid Logo

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Abstract

A dual-phase steel chemistry has been processed with varying intercritical annealing temperatures and the properties investigated. It was found that increasing the temperature in the intercritical region led to an increase in the volume fraction (52%–65%) and grain size (1.8–3.3 µm) of martensite wh...

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Published in: Ironmaking and Steelmaking
ISSN: 0301-9233 1743-2812
Published: Informa UK Limited 2022
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa60158
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Abstract: A dual-phase steel chemistry has been processed with varying intercritical annealing temperatures and the properties investigated. It was found that increasing the temperature in the intercritical region led to an increase in the volume fraction (52%–65%) and grain size (1.8–3.3 µm) of martensite whilst the volume fraction and grain size of ferrite decreased. The highest tensile strengths were found at low intercritical temperatures, achieving 935 MPa whilst the highest elongation values of 21% were achieved at the highest intercritical temperatures.
Keywords: Materials‌, Steel, AHSS‌, dual phase, annealing, microstructure, mechanical properties, tensile testing‌
College: College of Engineering
Funders: This project was funded by the European Social Fund via the Welsh Government and the Engineering and Physical Sciences Research Council.
Start Page: 1
End Page: 7