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An effective and low-cost method to prepare Re-doped aluminide coating on a Ni-based single crystal superalloy
Li, W.1,2; Fu, L. B.1,2; Li, S. M.1,2; Peng, X.1,2; Jiang, S. M.2; Gong, J.2; Sun, C.2
Corresponding AuthorJiang, S. M.(smjiang@imr.ac.cn)
2021-02-15
Source PublicationMATERIALS LETTERS
ISSN0167-577X
Volume285Pages:4
AbstractIn order to prepare Re doped aluminide coating, an effective and low-cost method of electroplating Ni-Re layer and subsequent low temperature high activity pack cementation method was used. Re-doped Ni2Al3 coating was consisted of an outer Ni2Al3 layer with dispersed Re-rich precipitates, a middle Ni2Al3 layer with dispersed W-rich precipitates and a bottom layer of interdiffusion zone (IDZ). Interestingly, Re existed in the outer coating in form of fine Re-rich precipitates because of low solid solubility of Re in Ni2Al3. [Al] was produced and absorbed on the surface of Ni-Re layer, and the activity of Al was far higher than that of Ni during pack cementation at 800 degrees C. Thus, Re-doped Ni2Al3 coating was mainly formed by virtually singular inward diffusion of [Al] through the Ni2Al3 layer. (c) 2020 Elsevier B.V. All rights reserved.
KeywordRhenium Aluminide coating Diffusion Microstructure
Funding OrganizationTianjin Major Science and Technology Project of Military-Civil Integration
DOI10.1016/j.matlet.2020.129112
Indexed BySCI
Language英语
Funding ProjectTianjin Major Science and Technology Project of Military-Civil Integration[18ZXJMTG00050]
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000612302900004
PublisherELSEVIER
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160705
Collection中国科学院金属研究所
Corresponding AuthorJiang, S. M.
Affiliation1.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Li, W.,Fu, L. B.,Li, S. M.,et al. An effective and low-cost method to prepare Re-doped aluminide coating on a Ni-based single crystal superalloy[J]. MATERIALS LETTERS,2021,285:4.
APA Li, W..,Fu, L. B..,Li, S. M..,Peng, X..,Jiang, S. M..,...&Sun, C..(2021).An effective and low-cost method to prepare Re-doped aluminide coating on a Ni-based single crystal superalloy.MATERIALS LETTERS,285,4.
MLA Li, W.,et al."An effective and low-cost method to prepare Re-doped aluminide coating on a Ni-based single crystal superalloy".MATERIALS LETTERS 285(2021):4.
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