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Versatility of potential protective layer material Ti2AlC on resisting CMAS corrosion to thermal barrier coatings
Yan, Zheng1; Guo, Lei1,2; Zhang, Zhao3; Wang, Xiaohui4; Ye, Fuxing1,2
Corresponding AuthorGuo, Lei(glei028@tju.edu.cn)
2020-05-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume167Pages:14
AbstractAlleviating calcium-magnesium-alumina-silicate (CMAS) hazard to thermal barrier coatings (TBCs) has attracted increasing attentions. Here, we demonstrate that Ti2AlC is a promising protective layer material for TBCs against CMAS attack, and clarify its corrosion resistance mechanisms. The results reveal that pre-oxidized Ti2AlC has obvious advantages over its non-oxidized counterpart on promoting CMAS crystallization and inhibiting the melt infiltration. Pre-oxidation produces a continuous Al2O3 layer and TiO2 particles on Ti2AlC surface, and Al2O3 reacts with molten CMAS to form anorthite crystals, while TiO2, in the form of either Ti-rich particles or Ti dissolution (there is a content threshold), promotes the crystallization.
KeywordThermal barrier coatings (TBCs) Calcium-magnesium-alumina-silicate (CMAS) Ti2AlC Pre-oxidization Crystallization mechanism
Funding OrganizationNational Natural Science Foundation of China
DOI10.1016/j.corsci.2020.108532
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51971156]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000525869800042
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/321006/138325
Collection中国科学院金属研究所
Corresponding AuthorGuo, Lei
Affiliation1.Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China
2.Minist Educ, Key Lab Adv Ceram & Machining Technol, Tianjin Key Lab Adv Joining Technol, Tianjin 300072, Peoples R China
3.Liaocheng Univ, Sch Mat Sci & Engn, Liaocheng 252059, Shandong, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Yan, Zheng,Guo, Lei,Zhang, Zhao,et al. Versatility of potential protective layer material Ti2AlC on resisting CMAS corrosion to thermal barrier coatings[J]. CORROSION SCIENCE,2020,167:14.
APA Yan, Zheng,Guo, Lei,Zhang, Zhao,Wang, Xiaohui,&Ye, Fuxing.(2020).Versatility of potential protective layer material Ti2AlC on resisting CMAS corrosion to thermal barrier coatings.CORROSION SCIENCE,167,14.
MLA Yan, Zheng,et al."Versatility of potential protective layer material Ti2AlC on resisting CMAS corrosion to thermal barrier coatings".CORROSION SCIENCE 167(2020):14.
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