The High Temperature Oxidation Behavior of Hot-Dipping Aluminized Steel 0Cr18Ni10Ti

Abstract:

0Cr18Ni10Ti stainless steel was coated by hot-dipping in a molten aluminum bath, and then diffusing annealing at 950 °C for 2h. The high temperature isothermal oxidation behaviors of the hot-dipped aluminized steel and 0Cr18Ni10Ti steel were tested at 900 °C for 100h using resistance furnace. Morphology, and phase composition, element distribution of the oxide scale were characterized by XRD, SEM and EDS. The results of hot-dipping Al showed that slow weight gain was occurred, because of the formation of compact and dense Al₂O₃ oxide film during the oxidation process. The result of 0Cr18Ni10Ti showed that instable oxidation occurred, and a significant weight gain was obtained. The oxidation behavior of the steel is subject to breakaway oxide nodules on the surface. The oxide nodules are composed of two layers. Outer Fe-rich layer is susceptible to spallation and inner layer is loose.

• Periodical: Advanced Materials Research (Volumes 912-914)
• Pages: 414-418
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.912-914.414
• Online since: April 2014
• Authors: Jin Lou*, Cheng Xiang Ruan, Xin Peng
• Keywords: 0Cr18Ni10Ti Stainless Steel, High Temperature Oxidation, Hot-Dipping Aluminum

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