Corrosion of Valve Steels in Combustion Gases of Diesel Engines under Thermal Shock Conditions


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The corrosion behavior of four valve steels (X33CrNiMn23-8, X50CrMnNiNbN21-9, X53CrMnNiN20-8 and X55CrMnNiN20-8) in combustion gases of fuel oil, containing different bio-component concentrations of (5 and 10 wt. %) has been studied under thermal shock conditions. It has been found that the addition of bio-components to the fuel oil decreases the corrosion resistance of all steels under investigation, this effect being the stronger, the higher was the concentration of bio-component addition. It has been shown, that in spite of bio-component addition, the X33CrNiMn23-8 steel containing the highest chromium concentration, behaved much better than three remaining steels due to the formation of the highly protective chromia scale.



Defect and Diffusion Forum (Volumes 323-325)

Edited by:

I. Bezverkhyy, S. Chevalier and O. Politano




Z. Grzesik et al., "Corrosion of Valve Steels in Combustion Gases of Diesel Engines under Thermal Shock Conditions", Defect and Diffusion Forum, Vols. 323-325, pp. 327-332, 2012

Online since:

April 2012




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