Predicting the Ms temperature of lean alloyed ferritic–austenitic stainless steels
Uusikallio, Sampo; Pohjonen, Aarne; Kaikkonen, Pentti; Haiko, Oskari; Kömi, Jukka (2025-01-29)
Elsevier
29.01.2025
Uusikallio, S., Pohjonen, A., Kaikkonen, P., Haiko, O., & Kömi, J. (2025). Predicting the Ms temperature of lean alloyed ferritic–austenitic stainless steels. Journal of Materials Research and Technology, 35, 2328–2336. https://doi.org/10.1016/j.jmrt.2025.01.089
https://creativecommons.org/licenses/by/4.0/
© 2025 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/).
https://creativecommons.org/licenses/by/4.0/
© 2025 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/).
https://creativecommons.org/licenses/by/4.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202502041462
https://urn.fi/URN:NBN:fi:oulu-202502041462
Tiivistelmä
Abstract
A set of laboratory hot-rolled and thermally cycled 19–22 wt% Cr lean alloyed ferritic–austenitic stainless steels were studied with respect to calculated equilibrium austenite composition and experimental martensite start (Ms) temperature. Differences in Ms temperatures were achieved by altering alloying elements such as Mn, Ni, N and Cr. A new model predicting Ms temperature for lean alloyed ferritic–austenitic stainless steels was created. A link between the Ms temperature model of this study and the Ms temperature formula of the research of Finkler & Schirra was formed to create a connection between lean alloyed ferritic–austenitic stainless steel and martensitic stainless steel. The proposed model predicts Ms temperature for targeted stainless steels more precisely.
A set of laboratory hot-rolled and thermally cycled 19–22 wt% Cr lean alloyed ferritic–austenitic stainless steels were studied with respect to calculated equilibrium austenite composition and experimental martensite start (Ms) temperature. Differences in Ms temperatures were achieved by altering alloying elements such as Mn, Ni, N and Cr. A new model predicting Ms temperature for lean alloyed ferritic–austenitic stainless steels was created. A link between the Ms temperature model of this study and the Ms temperature formula of the research of Finkler & Schirra was formed to create a connection between lean alloyed ferritic–austenitic stainless steel and martensitic stainless steel. The proposed model predicts Ms temperature for targeted stainless steels more precisely.
Kokoelmat
- Avoin saatavuus [38840]
Ellei muuten mainita, aineiston lisenssi on https://creativecommons.org/licenses/by/4.0/