Author/Authors :
de Rincَn، نويسنده , , O. and Rincَn، نويسنده , , A. and Sلnchez، نويسنده , , M. and Romero، نويسنده , , N. and Salas، نويسنده , , O. and Delgado، نويسنده , , R. and Lَpez، نويسنده , , B. and Uruchurtu، نويسنده , , J. and Marroco، نويسنده , , M. and Panosian، نويسنده , , Zephir، نويسنده ,
Abstract :
This paper presents a comparative evaluation of Al, Zn and Al–Zn coatings on carbon steel, exposed to a coastal-marine atmosphere. It is a very aggressive atmosphere with high wind velocities (corrosion–erosion rate ≈ 1.4 mm/year (55.12 mpy) for ASTM 1029 steel). Two flame spraying zinc coatings with pore sealers were also evaluated. ISO and ASTM standards were used for the evaluation.
a 2-year exposure the best performance was achieved by the flame spraying Zn/15Al alloy (85% Zn–15%Al) with some damage of the coatings. But the one with a wash primer pore sealer did not show signs of damage.
Keywords :
Al and Al–Zn coatings , Zn , Carbon steel , Atmospheric Corrosion
