Preparation and Hot Corrosion Behavior of a NiCrAlY+AlNiY Composite Coating
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2016年第6期
论文作者：Xin Peng Sumeng Jiang Jun Gong Xudong Sun Cao Sun
文章页码：587 - 592
摘 要：In this study,a Ni CrAlY+AlNiY composite coating was prepared by arc ion plating technique and subsequent annealing treatment.Cyclic hot corrosion tests of the composite coating and a reference NiCrAlY coating coated with mixed salts of Na2SO4+K2SO4 and Na2SO4+Na Cl were carried out at 700°C.The results indicated that the composite coating performed better against the corrosion due to the gradient element distribution in Al-enriched outer layer and Cr-enriched inner layer.The corrosion mechanisms for the two coatings were also discussed.
Xin Peng1，Sumeng Jiang2，Jun Gong2，Xudong Sun1，Cao Sun2
1. Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education),School of Materials Science and Engineering,Northeastern University2. Institute of Metal Research,Chinese Academy of Sciences
摘 要：In this study,a Ni CrAlY+AlNiY composite coating was prepared by arc ion plating technique and subsequent annealing treatment.Cyclic hot corrosion tests of the composite coating and a reference NiCrAlY coating coated with mixed salts of Na2SO4+K2SO4 and Na2SO4+Na Cl were carried out at 700°C.The results indicated that the composite coating performed better against the corrosion due to the gradient element distribution in Al-enriched outer layer and Cr-enriched inner layer.The corrosion mechanisms for the two coatings were also discussed.
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