Boronizing Effect on the Corrosion Behaviour of Chilled Cast Iron and AISI 1050 Steel

Abstract

Corrosion behaviour of boronized and unboronized AISI 1050 steel and chilled cast iron were investigated by the weight loss method. Corrosion studies were performed with 10 % H 2 S0 4 solution as a corrosive medium at temperatures 298, 333 and 353 Κ and 2 h immersion periods. The weight loss of AISI 1050 steel and chilled cast iron treated in the corrosive medium increased with increasing temperature. While the weight loss of the AISI 1050 steel increased exponentially with increasing temperature, the chilled cast iron showed continuously decreasing values. Very low weight losses were observed in boronized samples compared with unboronized samples. The boronizinig process significantly decreased the weight loss of both materials and improved the corrosion behaviour.

Corrosion Prevention of Cast Iron Industrial Water Pipes: A Preliminary Comparative Study of Hexamine and Aniline Inhibitors

“…The corrosion of cast iron in acidic and alkaline mediums was studied in several previous works (Osarolube et al 2008;Simsek et al 2010). These studies figured out aqueous salt solutions, at high salt concentrations such as 3.0 M, are the most corrosive for cast iron metal.…”