NaCl-induced hot corrosion behaviors of NiSiAlY coatings
نویسندگان
چکیده
In the marine environments, NiCrAlY coatings with high content of Cr would suffer much severer corrosion due to effect NaCl. Thus, NiSiAlY different Si were proposed and deposited on Ni-based superalloys by multi-arc ion plating. The as-deposited coating was mainly composed γ’-Ni 3 Al phase a small amount β-NiAl phase. NaCl-induced hot tests performed at 500°C, 600°C, 700°C, respectively. Compared alloy substrates, exhibited good resistance NaCl elevated temperatures. However, an excessive Si, showed degradation in resistance. this work, mechanisms tested discussed. Moreover, role also investigated.
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ژورنال
عنوان ژورنال: Frontiers in Materials
سال: 2023
ISSN: ['2296-8016']
DOI: https://doi.org/10.3389/fmats.2023.1186789