| Oxidation and hot-corrosion behavior of sputtered Ti-48Al-8Cr-2Ag nanocrystalline coating | |
| Xi, YJ; Wang, FH; He, LL | |
| Corresponding Author | Xi, YJ(Fhwang@icpm.syb.ac.cn) |
| 2004 | |
| Source Publication | HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS
 |
| ISSN | 0255-5476 |
| Volume | 461-464Pages:1181-1188 |
| Abstract | Magnetron-sputter deposition was used to produce a Ti-48Al-8Cr-2Ag (at.%) coating on a cast alloy substrate with the same composition. The oxidation behavior of the cast Ti-48Al-8Cr-2Aa alloy and its sputtered coating was investigated in air at 800degreesC-1000degreesC. Hot corrosion was carried out in molten 75% Na2SO4 + 25% K2SO4 at 900degreesC. The results indicated that the oxidation rate of sputtered nanocrystalline coating was lower than that of the cast alloy at 900degreesC. The former formed a scale of merely Al2O3 and the latter formed a scale of Al2O3 + TiO2 mixture. For the same reason, the sputtered nanocrystalline coating exhibited much better hot corrosion resistance than the cast alloy in molten 75% Na2SO4 + 25% K2SO4 at 900degreesC. However, the nanocrystalline showed a little bit higher oxidation rate than the cast alloy at 800degreesC and 1000degreesC, because spherical surface and boundaries or free surface between columnar of the coating gave a larger actual oxidation area than the original alloy. |
| Keyword | TiAlCrAg nanocrystalline coating high temperature oxidation hot corrosion |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000223339700140 |
| Publisher | TRANS TECH PUBLICATIONS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/119903 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Xi, YJ |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Xi, YJ,Wang, FH,He, LL. Oxidation and hot-corrosion behavior of sputtered Ti-48Al-8Cr-2Ag nanocrystalline coating[J]. HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS,2004,461-464:1181-1188. |
| APA | Xi, YJ,Wang, FH,&He, LL.(2004).Oxidation and hot-corrosion behavior of sputtered Ti-48Al-8Cr-2Ag nanocrystalline coating.HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS,461-464,1181-1188. |
| MLA | Xi, YJ,et al."Oxidation and hot-corrosion behavior of sputtered Ti-48Al-8Cr-2Ag nanocrystalline coating".HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS 461-464(2004):1181-1188. |
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