Sensibility of mechanical and electrochemical tests in detecting alpha prime phase in duplex stainless steels aged at 475 ºC
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2009
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INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS, 11th
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Resumo
Alpha prime formation leads to material embrittlement and decreases corrosion and mechanical resistance. In the
present study, some tests as microhardness, impact test, electrochemical impedance spectroscopy and cyclic polarization were
performed with the duplex stainless steel (DSS) UR 52N+aged at 475 ºC from 0.5 h to 1,032 h in order to evaluate the sensibility of
these tests in detecting alpha prime presence. After 0.5 h of aging at 475 ºC it was observed that impact test indirectly revealed the
presence of this deleterious phase in the DSS studied, and this test was the most sensible for detecting alpha prime among the other
ones used.
Como referenciar
FONTES, T.F.; TERADA, M.; PADILHA, A.F.; MAGNABOSCO, R.; COSTA, I. Sensibility of mechanical and electrochemical tests in detecting alpha prime phase in duplex stainless steels aged at 475 ºC. In: INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS, 11th, September 20-25, 2009, Rio de Janeiro, RJ. Abstract... Disponível em: http://repositorio.ipen.br/handle/123456789/32987. Acesso em: 30 Dec 2025.
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