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Corrosion behavior of Eurofer 97 and ODS-Eurofer alloys compared to traditional stainless steels |
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| Authors: | Maysa Terada Angelo Jos�� de Oliveira Zimmermann Hugo Ricardo Zschommler Sandim Isolda Costa Angelo Fernando Padilha |
| Affiliation: | 1. Laborat??rio de Microscopia, Laborat??rio Nacional de Luz S??ncrotron, Rua Giuseppe M??ximo Scolfaro, 10.000 P??lo II de Alta Tecnologia, Campinas 2. Departamento de Engenharia Metal??rgica e de Materiais, Escola Polit??cnica da Universidade de S?o Paulo, Av. Prof. Mello de Morais, 2463, CEP 05508-030, S?o Paulo, SP, Brazil 3. Departamento de Engenharia de Materiais, Escola de Engenharia de Lorena, Polo Urbo-Industrial, Universidade de S?o Paulo, Gleba Al-6, Lorena, SP, Brazil 4. Instituto de Pesquisas Energ??ticas e Nucleares-CCTM, Av. Prof. Lineu Prestes, 2242, CEP 05508-900, S?o Paulo, SP, Brazil |
| Abstract: | In the present work, the corrosion resistance of ferritic-martensitic EUROFER 97 and ODS-EUROFER steels was tested in solutions containing NaCl or H2SO4 and KSCN, both at 25 °C. The results were compared to those of AISI 430 ferritic and AISI 410 martensitic conventional stainless steels. The as-received samples were tested by electrochemical techniques, specifically, electrochemical impedance spectroscopy, potentiodynamic polarization curves, and double-loop electrochemical potentiokinetic reactivation tests. The surfaces were observed by scanning electron microscopy after exposure to corrosive media. The results showed that EUROFER 97 and ODS-EUROFER alloys present similar corrosion resistance but lower than ferritic AISI 430 and martensitic 410 stainless steels. |
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