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Effect of borate coating on oxidation resistance of gamma-TiAl intermetallic compound
Lei, MK; Zhu, XP; Han, SQ; Wang, DY; Wang, FG; Wang, FH
Corresponding AuthorLei, MK(mklei@dlut.edu.cn)
2000-08-15
Source PublicationMATERIALS CHEMISTRY AND PHYSICS
ISSN0254-0584
Volume65Issue:3Pages:249-252
AbstractThe pack boriding process has been used to treat gamma-TiAl intermetallic compound at a boriding temperature of 940 degrees C for a boriding time of 8 h. A dense and continuous borided layer ca. 15 mu m thick was obtained on gamma-TiAl. The X-ray diffraction pattern depicts a single borate phase 9(Al,Ti)(2)O-3 B2O3 formed in the borided layer. Cyclic oxidation behavior of the borate coating has been investigated at an oxidation temperature of 800 degrees C with a total exposure time up to 100 h in air. The mass gain of the borate coating was 1.6 mg cm(-2), which is about three times lower than that of unborided gamma-TiAl. The 9(Al,Ti)(2)O-3 B2O3 phase decomposes slowly during the oxidation process at 800 degrees C in air. The stable borate coating improves the high temperature oxidation resistance of gamma-TiAl. (C) 2000 Elsevier Science S.A. All rights reserved.
Keywordintermetallic compounds coatings oxidation electron microscopy X-ray diffraction
Indexed BySCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000087849500002
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/110854
Collection中国科学院金属研究所
Corresponding AuthorLei, MK
Affiliation1.Dalian Univ Technol, Dept Mat Engn, Surface Engn Lab, Dalian 116024, Peoples R China
2.Dalian Univ Technol, State Key Lab Mat Modificat Laser Ion & Electron, Dalian 116024, Peoples R China
3.Dalian Univ Technol, Dept Mat Engn, Dalian 116024, Peoples R China
4.Chinese Acad Sci, Inst Corros & Protect Met, Shenyang 110015, Peoples R China
Recommended Citation
GB/T 7714
Lei, MK,Zhu, XP,Han, SQ,et al. Effect of borate coating on oxidation resistance of gamma-TiAl intermetallic compound[J]. MATERIALS CHEMISTRY AND PHYSICS,2000,65(3):249-252.
APA Lei, MK,Zhu, XP,Han, SQ,Wang, DY,Wang, FG,&Wang, FH.(2000).Effect of borate coating on oxidation resistance of gamma-TiAl intermetallic compound.MATERIALS CHEMISTRY AND PHYSICS,65(3),249-252.
MLA Lei, MK,et al."Effect of borate coating on oxidation resistance of gamma-TiAl intermetallic compound".MATERIALS CHEMISTRY AND PHYSICS 65.3(2000):249-252.
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