Mechanical properties and application potentials of high performance ferritic (HiperFer) steels

Abstract:

Mechanical and microstructural properties of the high performance ferritic (HiperFer) stainless steels, which are under development at the Institute of Microstructure and Properties of Materials (IEK-2) at Forschungszentrum Jülich GmbH in Germany were investigated. This type of steel provides a unique combination of creep, thermomechanical fatigue, steam oxidation and wet corrosion resistance. The balanced property profile makes it a high potential candidate material for highly flexible, future power conversion equipment like concentrating solar power plants, conventional thermal back-up power plants or “Power-2-X” conversion systems. This publication outlines the impact of chemical composition, heat and thermomechanical treatment on mechanical properties (tensile, creep, thermomechanical fatigue, fatigue crack propagation and Charpy impact strength) of these novel steels and their welds. An overview on the development status reached is given and future development and application potentials are outlined.

Año de publicación:

2017

Keywords:

Fuente:

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