Effect of RE on Cyclic Oxidation Behavior of Ferrite Stainless Steel

Abstract:

A primary study on the resistance to high-temperature-oxidation of 430 ferrite stainless steel and its oxidation process before and after the addition of RE elements was reported. Results show that the oxidation resistance of 430 ferrite stainless steel after adding RE is indeed great. The value of oxidation rate of Sample 1 (without adding RE) is 2.87 times higher than Sample 2, respectively at 1423K after oxidizeing for totally 144h. And the dense and adherent Cr2O3 scale and FeCr2O4 scale are formed and played the protection role to the 430 ferrite stainless steel. In the internal oxidation layer, the pinning effect of silicon dioxide is strengthened by RE.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 4063-4066
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.4063
• Online since: October 2012
• Authors: Xiao Liu, Long Mei Wang
• Keywords: Ferrite Stainless Steel, Oxidation Resistance, Oxide Film, Rare Earth (RE)

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