The High Temperature Oxidation Behavior of Hot-Dip Aluminized GH169

Jin Lou; Cheng Xiang Ruan

doi:10.4028/www.scientific.net/AMR.900.87

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 900The High Temperature Oxidation Behavior of Hot-Dip...

The High Temperature Oxidation Behavior of Hot-Dip Aluminized GH169

Abstract:

GH169 was coated by hot-dipping in a molten aluminum bath, and then diffusing annealing at 950 °C for 2 h. The high temperature isothermal oxidation behavior of the hot-dipped aluminized alloy and GH169 was tested at 900 °C for 100 h using resistance furnace. The surface morphology and phase composition of the oxide scale were studied by SEM and EDS. The result of high temperature oxidation test showed that oxidation curves of hot-dipped aluminized steel and GH169 followed parabolic law at 900 °C for 100h and the hot-dipped aluminum present more excellent anti-oxidation. A dense film formed on GH169 mainly composed of Cr₂O₃ and TiO₂ while on hot-dipped aluminized steel is Al₂O₃.

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Periodical:

Advanced Materials Research (Volume 900)

Pages:

87-91

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.900.87

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Online since:

February 2014

Authors:

Jin Lou*, Cheng Xiang Ruan

Keywords:

GH169, High Temperature Oxidation, Hot-Dipping Aluminum

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