Ye Ruiceng, Sun Jingui, Liao Xiaoning, Lu Fanxiu, Yu Wenxiu. Investigation of Hot Corrosion of Great Wall No.1 Coating[J]. Chinese Journal of Engineering, 1993, 15(1): 120-126. DOI: 10.13374/j.issn1001-053x.1993.01.022
Citation: Ye Ruiceng, Sun Jingui, Liao Xiaoning, Lu Fanxiu, Yu Wenxiu. Investigation of Hot Corrosion of Great Wall No.1 Coating[J]. Chinese Journal of Engineering, 1993, 15(1): 120-126. DOI: 10.13374/j.issn1001-053x.1993.01.022
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Investigation of Hot Corrosion of Great Wall No.1 Coating

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  • High temperture corrosion tests in 75%Na2SO4-25%NaCl molten salt have been conducted on GH864 superalloy specimens plasma sprayed with great wall No.1 and X-40 coatings. After the corrosion tests,each sample was examined by OM, SEMand EMPA.It was found that X-40 coating was severely corroded by the molten salt due to cracking and spalling, whereas the Great Wall No.1 exhibited superior corrosion resistance.
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