Banca de DEFESA: LAURA RAMOS DE PAULA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : LAURA RAMOS DE PAULA
DATA : 10/06/2020
HORA: 09:30
LOCAL: Por participação remota https://conferenciaweb.rnp.br/webconf/renato-29
TÍTULO:

Development and characterization of electrodeposited cerium-based coatings on the AISI 304 stainless steel

PÁGINAS: 80
GRANDE ÁREA: Engenharias
ÁREA: Engenharia de Materiais e Metalúrgica
SUBÁREA: Metalurgia Física
ESPECIALIDADE: Corrosão
RESUMO:

The aim of the present work is to investigate the corrosion behavior of cerium-coated AISI 304 stainless steel samples. The coatings were obtained by cathodic electrodeposition using cerium nitrate and lanthanum nitrate-based electrolytes. The corrosion behavior was evaluated by electrochemical impedance spectroscopy and potentiodynamic polarization. The oxide layers were examined by confocal laser scanning microscopy and scanning electron microscopy. X-ray photoelectron spectroscopy was employed to assess the surface chemical states. The deposition process was successful. Cerium was found as a mixture of Ce3+ and Ce4+ species. Different electrodeposition conditions were tested, varying the applied potential and treatment time. The results point to an increase of the corrosion resistance of the AISI 304 substrate due to the presence of the cerium-based film.   

MEMBROS DA BANCA:
Presidente - Interno ao Programa - 1671298 - RENATO ALTOBELLI ANTUNES
Membro Titular - Examinador(a) Interno ao Programa - 1646041 - CARLOS TRIVENO RIOS
Membro Titular - Examinador(a) Externo à Instituição - MARINA FUSER PILLIS - IPEN
Membro Suplente - Examinador(a) Interno ao Programa - 3068039 - MOHAMMAD MASOUMI
Membro Suplente - Examinador(a) Externo ao Programa - 1734912 - ROOSEVELT DROPPA JUNIOR
Membro Suplente - Examinador(a) Externo ao Programa - 1671688 - ANDRE SARTO POLO
Membro Suplente - Examinador(a) Externo à Instituição - JEAN VICENTE FERRARI - USP