Compositional Optimization of High-Performance Ferritic (HiperFer) Steels—Effect of Niobium and Tungsten Content

Metals, vol. 10, pp. 1300

Abstract

The combined addition of Nb and W provides increased solid solution and precipitation strengthening by (Fe,Cr,Si)2(Nb,W)-Laves phase particles of ferritic, 17 wt.% Cr stainless high-performance ferritic (HiperFer) steel. Based on alloy modifications and the obtained hardness, tensile, and creep testing results; a new high alloying variant is proposed as a candidate steel for future structural application up to approximately 680 °C in power engineering and the process industry.

Authors 5

1. Xiuru Fan

   Forschungszentrum Jülich · China Iron and Steel Research Institute Group

   Affiliation as printed

   Central Iron & Steel Research Institute (CISRI) Group, Material Digital R&D Centre, Beijing 100081, China

   Institute of Energy and Climate Research (IEK), Microstructure and Properties of Materials (IEK-2), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

2. Bernd Kuhn corresponding

   Forschungszentrum Jülich

   Affiliation as printed

   Institute of Energy and Climate Research (IEK), Microstructure and Properties of Materials (IEK-2), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

3. Jana Pöpperlová Aachen Steel Institute

   RWTH Aachen University

   Affiliation as printed

   Steel Institute, RWTH Aachen University (IEHK), Intzestr. 1, 52072 Aachen, Germany

4. Wolfgang Peter Bleck Aachen Steel Institute

   RWTH Aachen University

   Affiliation as printed

   Steel Institute, RWTH Aachen University (IEHK), Intzestr. 1, 52072 Aachen, Germany

5. Ulrich Krupp Aachen Steel Institute

   RWTH Aachen University

   Affiliation as printed

   Steel Institute, RWTH Aachen University (IEHK), Intzestr. 1, 52072 Aachen, Germany