Insitu corrosion investigations on Delhi iron pillar
Rent the article at a discountRent now
* Final gross prices may vary according to local VAT.Get Access
For the first time, insitu corrosion investigations were carried out over the 1600 years old Delhi iron pillar to understand the corrosion aspects of the pillar and the scales developed over the surface. The study clearly indicated the heterogeneity of the Pillar with respect to corrosion behaviour. The polished surfaces at selected locations from base to crown of the pillar corroded in similar manner, and there was no significant variation in their corrosion behaviour. The scale developed over the pillar showed passive behaviour and depending on the location, variations were noticed in their polarization behaviour. The passivation current density measured from the polarization curves indicated the differences in the passivability of the scales, and the scale developed at the top of the pillar showed better passivation nature. XRD of the rust scale from two locations of the pillar showed mostly the presence of α-FeOOH, γ-FeOOH and γ-Fe2O3. Laser Raman Spectroscopy of the rust also supported the above findings.
- Lal B B, in The Delhi Iron Pillar: Its Art, Metallurgy and Inscriptions, Eds. Joshi M C, Gupta S K and Shankar Goyal, Kusumanjali Book World, Jodhpur, (1996) p 22.
- Bardgett W E and Stanners J F, NML Technical Journal, 5 (1963) 24.
- Ghosh M K, NML Technical Journal, 5 (1963) 31.
- Anantharaman T R, The Rustless Wonder-A Study of the Delhi Iron Pillar, Vigyan Prashar, New Delhi, (1997).
- Wranglen G, Corrosion Science, 10 (1970) 761. CrossRef
- Balasubramaniam R, Delhi Iron Pillar: New Insights, Indian Institute of Advanced Study, Shimla and Aryan Books International, New Delhi, (2002).
- Hudson J C, Nature, 172 (1953) 499. CrossRef
- Lahiri A K, Banerjee T and Nijhawan B R, NML Technical Journal, 5 (1963) 46.
- Baldev Raj, Kalyanasundaram P, Jayakumar T, Babu Rao C, Venkataraman B, Kamachi Mudali U, Joseph A, Anish Kumar and Rajkumar K V, Current Science, 88 (2005) 1948.
- Rocchini G, Corrosion Science, 38 (1996) 1019. CrossRef
- Stratmann M, The Atmospheric Corrosion of Iron and Steel — A Historic Review and Future Perspectives, 201st Meeting of the Electrochemical Society on Corrosion Science — A Retrospective and Current Status, Philadelphia, USA, May 2002.
- Stratmann M and Streckel H, Corrosion Science, 30 (1990) Part I and II, 681. CrossRef
- Stratmann M, Streckel H, Kim K T and Crockett S, Corrosion Science, 30 (1990) Part II, 715. CrossRef
- Misawa T, Asami K, Hashimoto K and Shimodaira S, Corrosion Science, 14 (1974) 279. CrossRef
- Misawa T, Yamashita M, Matsuda Y, Miyuki H and Nagano H, Journal of ISIJ, 79 (1993) 69.
- Takayuki Kamimura and Saburo Nasu, Materials Transactions JIM, 41 (2000) 1208.
- Cox A and Lyon S B, Corrosion Science, 36 (1994) Part I and II, 1167. CrossRef
- Zhang S H and Lyon S B, Corrosion Science, 36 (1994) Part I and II, 1289. CrossRef
- Dasgupta D, British Corrosion Journal, 4 (1969) 119.
- Insitu corrosion investigations on Delhi iron pillar
Transactions of the Indian Institute of Metals
Volume 62, Issue 1 , pp 25-33
- Cover Date
- Print ISSN
- Online ISSN
- Additional Links
- iron pillar
- protective scale
- surface analysis
- Industry Sectors