New Alumina Forming Martensitic Steels

QC 20230419
The work presents a new category of alloys, Alumina Forming Martensitic (AFM) steels, developed for new clean energy power applications such as thermal solar power and Gen IV nuclear power. The aim was to combine the superior corrosion resistance of the alumina scale with the excellent creep properties of the martensitic structure. The alloys were exposed to liquid lead at 550°C for 1824 hours to evaluate their oxidation properties. In addition, the microstructures were analysed in annealed conditions and after the exposure to assess phase stabilities. Using a variety of characterisation techniques, the studies identified Al-rich oxides formed on the surfaces of both specimens after the exposure with no lead penetration. Moreover, martensite, NiAl precipitates, and different carbides were observed in both alloys.

Lindgren, KristinaDepartment of Physics, Chalmers University of Technology, Göteborg SE-412 96, Sweden (författare)
Thuvander, MattiasDepartment of Physics, Chalmers University of Technology, Göteborg SE-412 96, Sweden (författare)
Lundberg, MatsMaterials and Technology, Sandvik Group, Sandviken SE-811 81, Sweden (författare)
Szakalos, PeterKTH,Yt- och korrosionsvetenskap(Swepub:kth)u140th9d (författare)
KTHYt- och korrosionsvetenskap (creator_code:org_t)

Av författaren/redakt...: Dömstedt, Peter; Lindgren, Kristi ...; Thuvander, Matti ...; Lundberg, Mats; Szakalos, Peter

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Materialteknik; och Metallurgi och m ...

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