Corrosion behavior of 0.02-2.0wt% Vanadium alloyed grey iron

• Published in: 2011 IEEE Colloquium on Humanities, Science and Engineering, CHUSER 2011
• Main Author: Alias S.K.; Abdullah B.; Idham M.F.; Latip S.A.; Rahman H.A.; Jahidi H.
• Format: Conference paper
• Language: English
• Published: 2011
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84858976791&doi=10.1109%2fCHUSER.2011.6163713&partnerID=40&md5=5a7708c0eec2eab22b0d4e3b4bc8af9c

This paper focused on corrosion behavior of grey cast iron having 0.02wt %, 0.5wt% and 2wt% vanadium as the alloying elements. Vanadium alloyed grey cast iron samples were produced by using Y - block CO 2 sand casting process and poured into double cylinder mould. The corrosion behavior was measured from polarization method, under 3.5% NaCl aqueous solution, conducted at room temperature. The corroded surfaces were then observed through scanning electron microscopy (SEM) and the compositions were obtained through sparked EDX analyzer. The microstructure vanadium alloyed grey cast iron show the presences of graphite flakes surrounded by ferritic structures. The corrosion rate, which was obtained from polarization test indicated that 2% alloyed grey cast iron produced better corrosion resistance compared with 0.02% and 0.5% vanadium alloyed grey cast iron. © 2011 IEEE.