Abstract
The corrosion control of ductile cast irons becomes a technological challenge when supplying castings to customers due to the high reactivity of this alloy in contact with air. An interesting alternative to the protective systems such as coatings or corrosion inhibitors included in packaging processes is the chemical modification of the cast alloys by means of alloying elements addition which are able to improve the corrosion resistance of ductile cast irons. Ni, Cr and Al added to the cast alloys significantly affect their structure and properties, among them their corrosion response, when exposed to air. It has been observed that Ni and Al improve the corrosion behaviour while Cr additionally promoted pearlite and carbides formation. The results from the corrosion tests performed on ductile cast iron alloys which contain these three elements are discussed in the present work.
Subject
Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics
Reference29 articles.
1. AFS (1984). Reference microstructure for measurement of pearlite and ferrite content in ductile iron microstructures. AFS current information report. Quality Control Committee 12-E, Ductile Iron Division.
2. Ali, M., Alshalal, I., Al Zubaidi, F.N., Yousif, A.R. (2020). Improvement of corrosion and erosion resistance properties for cast iron. IOP Conf. Ser.: Mater. Sci. Eng. 881, 012068.
3. Arenas, M.A., Niklas, A. Conde, A., Méndez, S., Sertucha, J., de Damborenea, J.J. (2014). Comportamiento frente a la corrosión de fundiciones con grafito laminar y esferoidal parcialmente modificadas con silicio en NaCl 0,03 M. Rev. Metal. 50 (4), e032.
4. ASM Handbook (2017). Cast iron science and technology. Corrosion in cast Irons. (Vol 1A). in D. M. Stefanescu (Ed.) ASM International, Ohio, USA, pp. 502-510.
5. ASM Speciality Handbook (1996). Cast Irons. J.R. Davis, ASM International, Ohio, USA, pp. 437-447.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献