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Elevated temperature material properties of a new high-chromium austenitic stainless steel

Liang, Yating; Manninen, Timo; Zhao, Ou; Walport, Fiona; Gardner, Leroy; (2019) Elevated temperature material properties of a new high-chromium austenitic stainless steel. Journal of Constructional Steel Research , 152 pp. 261-273. 10.1016/j.jcsr.2018.04.028. Green open access

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Abstract

A testing programme was conducted to investigate the material properties of a new high-chromium grade of austenitic stainless steel - EN 1.4420 at elevated temperatures. A total of 164 tensile coupons extracted from both cold-rolled and hot-rolled sheets were tested; 80 coupons were tested isothermally with temperatures ranging from 25 °C to 1100 °C, and 84 were tested anisothermally with stress levels ranging from 10% to 90% of the material 0.2% proof stress at room temperature. The experimentally derived reduction factors for the key material properties were compared with existing design values. Design recommendations for the elevated temperature reduction factors were then proposed for this new grade, and a two-stage Ramberg–Osgood model was shown to be able to accurately represent the material stress–strain response at elevated temperature.

Type: Article
Title: Elevated temperature material properties of a new high-chromium austenitic stainless steel
Location: ENGLAND, London
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.jcsr.2018.04.028
Publisher version: https://doi.org/10.1016/j.jcsr.2018.04.028
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Elevated temperatures, High-chromium austenitic stainless steel, Material properties, Steady state tests, Reduction factors; Transient state tests
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery-pp.ucl.ac.uk/id/eprint/10197709
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