电弧增强辉光放电增强NiCoCrAlY/AlSiY涂层的热腐蚀性能

IF 2.2 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters: X Pub Date : 2022-03-01 DOI:10.1016/j.mlblux.2022.100130

Guanming Xue , Zhiguo Wang , Lin Xiang , Han Xiao , Yanhui Zhao , Yuanyuan Wan , Haiqing Ning , Zhiwen Xie

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引用次数: 0

摘要

为提高NiCoCrAlY/AlSiY涂层的耐热腐蚀性能，研究了电弧增强辉光放电(AEGD)方法。AlSiY层的织构松散，同时存在大量孔隙，引发盐混合物的多尺度扩散，导致涂层织构严重腐蚀退化，NiCoCrAlY层扩散迅速。而aegd辅助的AlSiY层具有致密的织构，有效地阻止了盐混合物的扩散，抑制了腐蚀反应和NiCoCrAlY层的扩散。结果表明，AEGD在抑制热防护涂层的腐蚀损伤和扩散方面具有巨大的潜力。

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Enhancing hot corrosion performance of NiCoCrAlY/AlSiY coating by arc enhanced glow discharge

A promising arc enhanced glow discharge (AEGD) was developed to enhance hot corrosion resistance of NiCoCrAlY/AlSiY coating. The AlSiY layer exhibited loose texture accompanied by plenty of pores, which triggered the muti-scale diffusion of salt mixture resulting in severe corrosion degradation of coating texture and rapid diffusion of NiCoCrAlY layer. However, the AEGD-assisted AlSiY layer showed dense texture, which effectively prevented the diffusion of salt mixture and suppressed the corrosion reaction as well as the diffusion of NiCoCrAlY layer. The results confirmed that AEGD showed a huge potential to inhibit the corrosion damage and diffusion of thermal protective coatings.

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来源期刊

Materials Letters: X Multiple-

CiteScore

3.10

自引率

0.00%

发文量

审稿时长

114 days