Resumo de eventos cient??ficos
Sensibility of mechanical and electrochemical tests in detecting alpha prime phase in duplex stainless steels aged at 475 ??C
Registro en:
0000-0002-4987-3334
Autor
FONTES, T.F.
TERADA, M.
PADILHA, A.F.
MAGNABOSCO, R.
COSTA, I.
INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS, 11th
Resumen
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 ??C 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 ??C 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.