A non-destructive method is provided for determining amount and distribution of a corrosion product on a metallic substrate. A value of infrared energy reflected from the metallic substrate without corrosion is determined. A value of infrared energy reflected from the metallic substrate with the corrosion...http://www.google.com.au/patents/US7057177?utm_source=gb-gplus-sharePatent US7057177 - Infrared imaging for evaluation of corrosion test coupons
