Corrosion behavior of Eurofer 97 and ODS-Eurofer alloys compared to traditional stainless steels

Autor(es)

Terada, Maysa ^[1] ; de Oliveira Zimmermann, Angelo Jose ^[2] ; Zschommler Sandim, Hugo Ricardo ^[3] ; Costa, Isolda ^[4] ; Padilha, Angelo Fernando ^[2]

Afiliação do(s) autor(es)

^[1] Lab Nacl Luz Sincrotron, Lab Microscopia, Campinas, SP - Brazil

^[2] Univ Sao Paulo, Escola Politecn, Dept Engn Met & Mat, BR-05508030 Sao Paulo - Brazil

^[3] Univ Sao Paulo, Escola Engn Lorena, Dept Engn Mat, Lorena, SP - Brazil

^[4] Inst Pesquisas Energet Nucleares CCTM, BR-05508900 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Applied Electrochemistry; v. 41, n. 8, p. 951-959, AUG 2011.
• Citações Web of Science: 4

Resumo

In the present work, the corrosion resistance of ferritic-martensitic EUROFER 97 and ODS-EUROFER steels was tested in solutions containing NaCl or H(2)SO(4) and KSCN, both at 25 degrees 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. (AU)

• Processo FAPESP: 07/56436-0 - Encruamento, recuperacao e recristalizacao de um aco ferritico-martensitico (ods-eurofer) endurecido por dispersao de oxidos visando aplicacoes no reator de fusao nuclear iter.
• Beneficiário: Hugo Ricardo Zschommler Sandim
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 08/54836-4 - Correlação entre microestrutura e resistência à corrosão nas ligas ODS Eurofer para reatores de fusão nuclear
• Beneficiário: Maysa Terada
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado