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Effect of Pt-rich position on the hot corrosion behavior of NiCoCrAlY coating for a single-crystal superalloy
Yang, Y. F.; Ren, P.; Bao, Z. B.; Zhu, S. L.; Wang, F. H.; Li, W.
2020-08-15
Source PublicationSURFACE & COATINGS TECHNOLOGY
Volume395
AbstractTwo Pt modified NiCoCrAlY coatings were prepared with the Pt-rich zone located at the coating surface (NiCoCrAlY + Pt) or at the substrate/coating interface (Pt + NiCoCrAlY). The microstructures of two coatings were studied with TEM. The hot corrosion performance of the coatings was investigated in Na2SO4/NaCl (75:25, wt./wt.) mixed salt at 900 degrees C in comparison with the plain NiCoCrAlY coating. The results revealed that the NiCoCrAl + Pt coating showed superior hot corrosion resistance due to higher Al content at the surface and merits of Pt in improving oxide scale adhesion. Ta was constrained beneath the coating/substrate interface in Pt + NiCoCrAlY coating owing to the strong affinity between Pt and Ta.
DOI10.1016/j.surfcoat.2020.125938
WOS IDWOS:000539335900010
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82622
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Yang, Y. F.,Ren, P.,Bao, Z. B.,et al. Effect of Pt-rich position on the hot corrosion behavior of NiCoCrAlY coating for a single-crystal superalloy[J]. SURFACE & COATINGS TECHNOLOGY,2020,395.
APA Yang, Y. F.,Ren, P.,Bao, Z. B.,Zhu, S. L.,Wang, F. H.,&Li, W..(2020).Effect of Pt-rich position on the hot corrosion behavior of NiCoCrAlY coating for a single-crystal superalloy.SURFACE & COATINGS TECHNOLOGY,395.
MLA Yang, Y. F.,et al."Effect of Pt-rich position on the hot corrosion behavior of NiCoCrAlY coating for a single-crystal superalloy".SURFACE & COATINGS TECHNOLOGY 395(2020).
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