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Open AccessArticle

Thermomechanically Induced Precipitation in High-Performance Ferritic (HiperFer) Stainless Steels

1
Institute of Energy and Climate Research (IEK), Microstructure and Properties of Materials (IEK-2), Forschungszentrum Juelich GmbH, 52425 Jülich, Germany
2
Steel Institute RWTH Aachen University (IEHK), 52072 Aachen, Germany
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(16), 5713; https://doi.org/10.3390/app10165713
Received: 27 July 2020 / Revised: 7 August 2020 / Accepted: 12 August 2020 / Published: 18 August 2020
(This article belongs to the Special Issue Thermomechanical Properties of Steel)
Novel high-performance fully ferritic (HiperFer) stainless steels were developed to meet the demands of next-generation thermal power-conversion equipment and to feature a uniquely balanced combination of resistance to fatigue, creep, and corrosion. Typical conventional multistep processing and heat treatment were applied to achieve optimized mechanical properties for this alloy. This paper outlines the feasibility of thermomechanical processing for goal-oriented alteration of the mechanical properties of this new type of steel, applying an economically more efficient approach. The impact of treatment parameter variation on alloy microstructure and the resulting mechanical properties were investigated in detail. Furthermore, initial optimization steps were undertaken. View Full-Text
Keywords: HiperFer steel; thermomechanical processing; Laves phase; precipitation HiperFer steel; thermomechanical processing; Laves phase; precipitation
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MDPI and ACS Style

Fan, X.; Kuhn, B.; Pöpperlová, J.; Bleck, W.; Krupp, U. Thermomechanically Induced Precipitation in High-Performance Ferritic (HiperFer) Stainless Steels. Appl. Sci. 2020, 10, 5713.

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