Question

The iron pillar near the qutub minar ni new was made by iron so why it doesn't having any rust...It was made 1600 years ago how it's possible.


please give the correct answer​

Answer 1

• November, 1998, by Dr. R. Balasubramaniam, who works at the Department of Materials and Metallurgical Engineering, Indian Institute of Technology (IIT). Dr. Balasubramaniam and other metallurgists at Kanpur IIT believe they have discovered a compound of Fe, O and H named Misawite protecting the cast Iron Pillar from rust.
• November, 1998, by Dr. R. Balasubramaniam, who works at the Department of Materials and Metallurgical Engineering, Indian Institute of Technology (IIT). Dr. Balasubramaniam and other metallurgists at Kanpur IIT believe they have discovered a compound of Fe, O and H named Misawite protecting the cast Iron Pillar from rust.To understand this paper in a better way it is important to note the difference between Barffing and Galvanizin processes: Barffing is coating some steel, not with zinc, but an oxide, protecting the surface projecting from acids or air or a drink. Through the Bower-Barff process, steel or iron is coated at high heat with iron oxide. Thus, this process is called Barffing. Besides, Galvanizing is coating iron or steel with zinc.