The rare earth elements improve corrosion resistance of TBT 1979 05CuPCrNi corten steel sheets

TBT 1979 05CuPCrNi corten steel sheets become more popular in buildings, bridges, containers, and railway vehicles, etc. fields. Anyhow, TBT 1979 05CuPCrNi corten steel sheets price is not very favorable since its born until now. So, it becomes important to reduce cost and further improve corrosion resistance of TBT 1979 05CuPCrNi corten steel sheets. The research result proves rare earth elements can do a lot of help.

First, rare earth elements can effectively improve the corrosion resistance of TBT 1979 05CuPCrNi corten steel sheets. The corrosion rate of rare earth steel with 0.15% mass fraction is reduced to 55% of that without rare-earth steel. With rare earth elements, TBT 1979 05CuPCrNi corten steel sheets can easily get good low temperature impact toughness.

Second, The rust layer of TBT 1979 05CuPCrNi corten steel sheets formed during accelerated corrosion test is composed of alpha -FeOOH, gamma -Fe2O3 and gamma -FeOOH. The added rare earth is beneficial to the formation of stable phase -FeOOH and the corrosion resistance improvement of TBT 1979 05CuPCrNi corten steel sheets.

The rare earth elements are helpful to improve corrosion resistance of TBT 1979 05CuPCrNi corten steel sheets and reduce 05CuPCrNi steel material cost.