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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.1; Ren, P.1; Bao, Z. B.2; Zhu, S. L.2; Wang, F. H.3; Li, W.1
Corresponding AuthorYang, Y. F.(yfyang@jnu.edu.cn) ; Ren, P.(renp@foxmail.com)
2020-08-15
Source PublicationSURFACE & COATINGS TECHNOLOGY
ISSN0257-8972
Volume395Pages:10
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.
KeywordPt-modification NiCoCrAlY Hot corrosion TEM EPMA
Funding OrganizationScience and Technology Program of Guangzhou ; Fundamental Research Funds for the Central Universities ; Scientific Research Funds for the Talents and Innovation Foundation of Jinan University
DOI10.1016/j.surfcoat.2020.125938
Indexed BySCI
Language英语
Funding ProjectScience and Technology Program of Guangzhou[202007020008] ; Fundamental Research Funds for the Central Universities[21619334] ; Scientific Research Funds for the Talents and Innovation Foundation of Jinan University
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Coatings & Films ; Physics, Applied
WOS IDWOS:000539335900010
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/139263
Collection中国科学院金属研究所
Corresponding AuthorYang, Y. F.; Ren, P.
Affiliation1.Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, Guangzhou 510632, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Wencui Rd 62, Shenyang 110016, Peoples R China
3.Northeastern Univ, Corros & Protect Div, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
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,2020,395:10.
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,395,10.
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):10.
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