Size Effects in Corrosion of Thin Steel Films in Alkaline (NaOH) Environment in the Magnetic Field

A.Andreeva,
  
N.A.Vlasenko,
 
V.M.Karavaeva
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2013, #07/08
http://www.materials.kiev.ua/article/872

Abstract

Thin films of iron and iron-containing materials are promising for applications in spin electronics and nanotechnologies. The lifetime of items made of these films depends on their corrosion resistance under the impact of magnetic fields induced by flowing currents. The authors previously studied the corrosion of thin low-carbon steel films in acid (HCl) and salt (NaCl) water solutions, sea-water, and maritime air. This paper considers the corrosion characteristics of these thin films (electrode potential, current and rate of corrosion, controlling factor) in alkaline solution of NaOH. It is shown that all these parameters depend on film thickness both with and without constant magnetic field influence. The influence of the magnetic field is due to variation in properties of the films and NaOH solution.


CORROSION, FILMS, IRON, MAGNETIC FIELD, NAOH SOLUTION