| OXIDATION BEHAVIOR OF TIAL COATED WITH A FINE-GRAIN CO-30CR-4AL FILM | |
| TANIGUCHI, S; SHIBATA, T; ASANUMA, N; LOU, HY; WANG, FH; WU, WT | |
| Corresponding Author | TANIGUCHI, S() |
| 1993-06-01 | |
| Source Publication | OXIDATION OF METALS
 |
| ISSN | 0030-770X |
| Volume | 39Issue:5-6Pages:457-473 |
| Abstract | The oxidation behavior of TiAl coupons coated with a fine-grain Co-30Cr-4Al (mass %) film of about 30-mum thickness has been studied at 1100-1400 K in a flow of purified oxygen at atmospheric pressure for up to 500 ks. Three oxidation stages were recognized: initial transient, parabolic, and accelerated stages. However, at 1100 K a parabolic stage continues for more than 800 ks. The activation energy for parabolic oxidation agrees with reported values for the oxidation of alumina-former alloys, although the mass gains during the parabolic stages are relatively small at 1200 and 1300 K Micropores developed mainly at the scale/coating and coating/substrate interfaces as oxidation proceeded This is attributable to recrystallization of the coating during oxidation and a Kirkendall effect due to preferential diffusion of Co into the substrate. The accelerated oxidation can be explained in terms of the formation of rutile mounds on the scale. |
| Keyword | HIGH TEMPERATURE OXIDATION BEHAVIOR TIAL CO-CR-AL COATING ALUMINA SCALE PORE FORMATION |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:A1993LX41700007 |
| Publisher | PLENUM PUBL CORP |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/126405 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | TANIGUCHI, S |
| Affiliation | 1.CHINESE ACAD SCI,INST CORROS & PROTECT MET,CORROS SCI LAB,SHENYANG 110015,PEOPLES R CHINA 2.OSAKA UNIV,GRAD SCH ENGN,SUITA,OSAKA 565,JAPAN |
| Recommended Citation GB/T 7714 | TANIGUCHI, S,SHIBATA, T,ASANUMA, N,et al. OXIDATION BEHAVIOR OF TIAL COATED WITH A FINE-GRAIN CO-30CR-4AL FILM[J]. OXIDATION OF METALS,1993,39(5-6):457-473. |
| APA | TANIGUCHI, S,SHIBATA, T,ASANUMA, N,LOU, HY,WANG, FH,&WU, WT.(1993).OXIDATION BEHAVIOR OF TIAL COATED WITH A FINE-GRAIN CO-30CR-4AL FILM.OXIDATION OF METALS,39(5-6),457-473. |
| MLA | TANIGUCHI, S,et al."OXIDATION BEHAVIOR OF TIAL COATED WITH A FINE-GRAIN CO-30CR-4AL FILM".OXIDATION OF METALS 39.5-6(1993):457-473. |
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