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Oxidation Resistance of Thermal Barrier Coating with Vacuum Heat Treated Double-Layer Bond Coating
Gao Minghao; Luan Shengjia; Xu Na; Zhou Tianyi; Chang Hui; Zhu Hongbo; Zhang Jia; Hou Wanliang; Chang Xinchun
Corresponding AuthorChang Xinchun(xcchang@imr.ac.cn)
2022-02-01
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume51Issue:2Pages:719-726
AbstractThe lifetime of traditional thermal barrier coating with one layer bond coating is limited by the insufficient oxidation resistance. A thermal barrier coating with a double-layer bond coating was prepared by HVOF and APS. Vacuum heat treatment was carried out prior to the top coating. Oxidation resistance of the thermal barrier coating was researched. The results show that the content of beta-(Co, Ni)Al phase increases from 13.91% to 27.78% after 1050 degrees Cx3 h vacuum heat treatment, and the distribution is more homogeneous. The roughness of HVOF sprayed bond coating is decreased by vacuum heat treatment. The roughness of vacuum heat treated bond coating increases from 7.2 mu m to 10.4 mu m by the introduction of APS layer, and the bonding strength of thermal barrier coating is up to 39.4 MPa. The mass gain rate of thermal barrier coating is 0.1719 g/m(2).h after oxidizing at 1050 degrees C for 200 h, which is consistent with antioxidant level of aviation industry standard. The bond coating sprayed by APS is sacrificed to oxidize prior to HVOF layer. The stress tolerance of bond coating/top coating interface is improved, and the lifetime will be extended.
Keywordthermal barrier coating vacuum heat treatment oxidation resistance APS HVOF
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000768999100046
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/173132
Collection中国科学院金属研究所
Corresponding AuthorChang Xinchun
AffiliationChinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Gao Minghao,Luan Shengjia,Xu Na,et al. Oxidation Resistance of Thermal Barrier Coating with Vacuum Heat Treated Double-Layer Bond Coating[J]. RARE METAL MATERIALS AND ENGINEERING,2022,51(2):719-726.
APA Gao Minghao.,Luan Shengjia.,Xu Na.,Zhou Tianyi.,Chang Hui.,...&Chang Xinchun.(2022).Oxidation Resistance of Thermal Barrier Coating with Vacuum Heat Treated Double-Layer Bond Coating.RARE METAL MATERIALS AND ENGINEERING,51(2),719-726.
MLA Gao Minghao,et al."Oxidation Resistance of Thermal Barrier Coating with Vacuum Heat Treated Double-Layer Bond Coating".RARE METAL MATERIALS AND ENGINEERING 51.2(2022):719-726.
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