Influence of Pre-Oxidation on High Temperature Oxidation and Corrosion Behavior of Ni-Based Aluminide Coating in Na2SO4 Salt at 1050°C
نویسندگان
چکیده
Aluminide coating is prepared on K438 Ni-based superalloy by pack cementation. The hot corrosion test of as-received and pre-oxidation aluminide in Na 2 SO 4 salt are carried out at 1050°C. morphologies, phase composition, products characterized XRD, SEM, EDS, TEM. conclusion that the has excellent properties. After corrosion, oxide scale thinnest maintains good integrity. However, fluctuates greatly there cavities. CrS formed alloy immediately below for two systems.
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ژورنال
عنوان ژورنال: Frontiers in Materials
سال: 2021
ISSN: ['2296-8016']
DOI: https://doi.org/10.3389/fmats.2021.679682