| Microstructure and initial stage oxidation of NiCoCrAlY coatings deposited by arc ion plating technique | |
| Sun, C; Wang, QM; Tang, YJ; Guan, QF; Gong, J; Wen, LS | |
| Corresponding Author | Sun, C(csun@imr.ac.cn) |
| 2005-11-01 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 41Issue:11Pages:1167-1173 |
| Abstract | The microstructure of the NiCoCrAlY coatings deposited by arc ion plating (AIP) and its oxidation mechanism at initial stage were investigated by XRD, SEM, TEM and photostimulated luminescence spectroscopy (PSLS). The results showed that as-deposited NiCoCrAlY coatings were composed of nano-grains and possessed apparent layered structure. After vacuum annealing, the layered microstructure disappeared and the coating became much denser. The nano-grains in the coatings became much larger and twinned grains appeared. In addition, a very thin oxide scale mainly of alpha-Al2O3 formed on the coating surface after annealing. In the subsequent initial oxidation stages, transient theta-Al2O3 increased and then turned into stable alpha-Al2O3. The related mechanism was also discussed. |
| Keyword | NiCoCrAlY coating arc ion plating microstructure oxidation mechanism |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000233702000009 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/82544 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sun, C |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Div Surface Engn Mat, Shenyang 110016, Peoples R China 2.Jilin Univ, Sch Mat, Changchun 130025, Peoples R China |
| Recommended Citation GB/T 7714 | Sun, C,Wang, QM,Tang, YJ,et al. Microstructure and initial stage oxidation of NiCoCrAlY coatings deposited by arc ion plating technique[J]. ACTA METALLURGICA SINICA,2005,41(11):1167-1173. |
| APA | Sun, C,Wang, QM,Tang, YJ,Guan, QF,Gong, J,&Wen, LS.(2005).Microstructure and initial stage oxidation of NiCoCrAlY coatings deposited by arc ion plating technique.ACTA METALLURGICA SINICA,41(11),1167-1173. |
| MLA | Sun, C,et al."Microstructure and initial stage oxidation of NiCoCrAlY coatings deposited by arc ion plating technique".ACTA METALLURGICA SINICA 41.11(2005):1167-1173. |
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