Control of retained austenite stability during the heat treatment of the high performance steel Ferrium® M54®

Ferrium® M54® ultra-high-strength steel is an excellent candidate for landing gear applications due to its balance of UTS, KIC, and KISCC properties, which is among the best compared to steels currently in use. The tensile strength of Ferrium® M54® at room temperature is mainly provided by the marte...

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Main Authors: A. Mondiere, V. Déneux, N. Binot, D. Delagnes
Format: Article
Language:English
Published: Elsevier 2025-05-01
Series:Journal of Materials Research and Technology
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Online Access:http://www.sciencedirect.com/science/article/pii/S2238785425007409
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author A. Mondiere
V. Déneux
N. Binot
D. Delagnes
author_facet A. Mondiere
V. Déneux
N. Binot
D. Delagnes
author_sort A. Mondiere
collection DOAJ
description Ferrium® M54® ultra-high-strength steel is an excellent candidate for landing gear applications due to its balance of UTS, KIC, and KISCC properties, which is among the best compared to steels currently in use. The tensile strength of Ferrium® M54® at room temperature is mainly provided by the martensitic structure formed during quenching and by the precipitation of molybdenum M2C carbides during tempering. However, a significant amount of retained austenite may remain after heat treatment. This study demonstrates that both the temperature and the delay between quenching and cryogenic treatment are critical parameters. Specifically, carbon diffusion during this period, even at room temperature, contributes to stabilizing the retained austenite. Austenite stabilization is modelled using the Johnson-Mehl-Avrami-Kolmogorov law to determine the maximum allowable dwell time between quenching and cryogenic treatment. This important finding helps in stabilizing the yield strength and preventing the transformation of retained austenite into fresh martensite under load.
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series Journal of Materials Research and Technology
spelling doaj-art-2013477508cd49f49e2ee3aa29fe25352025-08-20T01:55:11ZengElsevierJournal of Materials Research and Technology2238-78542025-05-01362074208210.1016/j.jmrt.2025.03.230Control of retained austenite stability during the heat treatment of the high performance steel Ferrium® M54®A. Mondiere0V. Déneux1N. Binot2D. Delagnes3Institut Clément Ader (ICA), Université de Toulouse, CNRS, IMT Mines Albi, INSA, ISAE- SUPAERO, UPS, Campus Jarlard, F-81013, Albi, FranceSafran Landing Systems, Bidos, F-64400, FranceSafran Landing Systems, Bidos, F-64400, FranceInstitut Clément Ader (ICA), Université de Toulouse, CNRS, IMT Mines Albi, INSA, ISAE- SUPAERO, UPS, Campus Jarlard, F-81013, Albi, FranceFerrium® M54® ultra-high-strength steel is an excellent candidate for landing gear applications due to its balance of UTS, KIC, and KISCC properties, which is among the best compared to steels currently in use. The tensile strength of Ferrium® M54® at room temperature is mainly provided by the martensitic structure formed during quenching and by the precipitation of molybdenum M2C carbides during tempering. However, a significant amount of retained austenite may remain after heat treatment. This study demonstrates that both the temperature and the delay between quenching and cryogenic treatment are critical parameters. Specifically, carbon diffusion during this period, even at room temperature, contributes to stabilizing the retained austenite. Austenite stabilization is modelled using the Johnson-Mehl-Avrami-Kolmogorov law to determine the maximum allowable dwell time between quenching and cryogenic treatment. This important finding helps in stabilizing the yield strength and preventing the transformation of retained austenite into fresh martensite under load.http://www.sciencedirect.com/science/article/pii/S2238785425007409Ultra-high strength steelRetained austeniteHeat treatmentThermal stabilization of austeniteYield strength
spellingShingle A. Mondiere
V. Déneux
N. Binot
D. Delagnes
Control of retained austenite stability during the heat treatment of the high performance steel Ferrium® M54®
Journal of Materials Research and Technology
Ultra-high strength steel
Retained austenite
Heat treatment
Thermal stabilization of austenite
Yield strength
title Control of retained austenite stability during the heat treatment of the high performance steel Ferrium® M54®
title_full Control of retained austenite stability during the heat treatment of the high performance steel Ferrium® M54®
title_fullStr Control of retained austenite stability during the heat treatment of the high performance steel Ferrium® M54®
title_full_unstemmed Control of retained austenite stability during the heat treatment of the high performance steel Ferrium® M54®
title_short Control of retained austenite stability during the heat treatment of the high performance steel Ferrium® M54®
title_sort control of retained austenite stability during the heat treatment of the high performance steel ferrium r m54 r
topic Ultra-high strength steel
Retained austenite
Heat treatment
Thermal stabilization of austenite
Yield strength
url http://www.sciencedirect.com/science/article/pii/S2238785425007409
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