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Hot corrosion behavior of Pt plus Hf co-modified NiAl coating in the mixed salt of Na2SO4-NaCl at 900 degrees C
Yang, Y. F.1; Liu, Z. L.2; Ren, P.1; Wang, Q. W.1; Bao, Z. B.2; Zhu, S. L.2; Li, W.1
Corresponding AuthorRen, P.(renpan@jnu.edu.cn) ; Wang, Q. W.(wangqiwei@jnu.edu.cn)
2020-05-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume167Pages:10
AbstractHot corrosion behavior of Pt + Hf co-modified NiAl coating was evaluated in a salt mixture of Na2SO4/NaCl(75:25, wt./wt.) at 900 degrees C in comparing to Pt modified NiAl coating. Worm-like embossments appeared and developed in Pt+Hf co-modified NiAl coating due to the formation of slack Al2S3 and gaseous chloride bubbles. The fast dissolution of HfO2 during hot corrosion led to the disappearing of diffusion barrier effect of Hf-rich zone and elements like, Ni, Ti and N diffused into the oxide scale. The hot corrosion mechanism of Pt + Hf co-modified NiAl coating and the effects of Hf on this process were discussed in this work.
KeywordPlatinum Metal coatings TEM EPMA Hot corrosion
Funding OrganizationNational Key Research and Development Program ; Fundamental Research Funds for the Central Universities ; Scientific Research Funds for the Talents and Innovation Foundation of Jinan University
DOI10.1016/j.corsci.2020.108527
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program[2018YFB2002000] ; Fundamental Research Funds for the Central Universities[21619334] ; Scientific Research Funds for the Talents and Innovation Foundation of Jinan University
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000525869800037
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138265
Collection中国科学院金属研究所
Corresponding AuthorRen, P.; Wang, Q. W.
Affiliation1.Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, West Huangpu Rd 601, Guangzhou 510632, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Wencui Rd 62, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Yang, Y. F.,Liu, Z. L.,Ren, P.,et al. Hot corrosion behavior of Pt plus Hf co-modified NiAl coating in the mixed salt of Na2SO4-NaCl at 900 degrees C[J]. CORROSION SCIENCE,2020,167:10.
APA Yang, Y. F..,Liu, Z. L..,Ren, P..,Wang, Q. W..,Bao, Z. B..,...&Li, W..(2020).Hot corrosion behavior of Pt plus Hf co-modified NiAl coating in the mixed salt of Na2SO4-NaCl at 900 degrees C.CORROSION SCIENCE,167,10.
MLA Yang, Y. F.,et al."Hot corrosion behavior of Pt plus Hf co-modified NiAl coating in the mixed salt of Na2SO4-NaCl at 900 degrees C".CORROSION SCIENCE 167(2020):10.
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