steel aircraft in sky, can you imagine?

Dr. Hansoo Kim's invention gives us a new hope for steel aircraft in sky. If this can  be produced industrially one day we can see steel aircraft in sky. The Economist published an article "An alloy of iron and aluminium is as good as titanium, at a tenth of the cost " . POSCO, one of the world’s largest steel companies is working with the Dr. Kim's invention industrially on a trial basis. An alloy of iron, aluminium , carbon, Manganese and nickel will be the new  invented alloy which comes to a new hope for us. Material science is one of the important and demanding topics now-a-days. Articles - alloy-iron-and-aluminium-good-titanium-tenth