| Effect of chromium on the oxidation of a Fe-10Al alloy at 1000 degrees C | |
| Zhang, ZG; Niu, Y | |
| Corresponding Author | Zhang, ZG(zhgzhang@imr.ac.cn) |
| 2005 | |
| Source Publication | PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5
 |
| ISSN | 0255-5476 |
| Volume | 475-479Pages:685-688 |
| Abstract | The effect of the addition of 5 and 10 at.% Cr on the oxidation of a binary Fe-10 at.% Al alloy (Fe-10Al) was studied in 1 atm 02 at 1000 degrees C. Fe-10Al underwent a very slow initial nearly-parabolic stage followed by a breakaway composed of two subsequent parabolic stages with a smaller rate constant for the final period. The two ternary alloys (Fe-5Cr-10Al and Fe-10Cr-10Al) presented two parabolic stages with final rate constants similar to each other and much lower than that for Fe-10AL The alumina scale developed initially on Fe-10Al was replaced later by a layered scale containing mixtures of Fe and Al oxides plus many Fe-rich oxide nodules. Fe-5Cr-10Al was mostly covered by a thin alumina layer just above the alloy surface with some Fe-rich nodules formed in the beginning of oxidation, which later on were healed by alumina with a large decrease of the oxidation rate. A continuous alumina layer formed on the whole sample surface without any Fe-rich nodule for Fe-10Cr-10Al. Therefore, the addition of chromium is obviously beneficial for the oxidation resistance of Fe-10Al by inhibiting the formation of fast-growing Fe-containing oxides and promoting the development of an exclusive alumina layer. However, the effect of chromium is different from the classical third-element effect. |
| Keyword | FeCrAl ternary alloys oxidation Cr effect |
| 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:000227494709157 |
| Publisher | TRANS TECH PUBLICATIONS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/82988 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, ZG |
| Affiliation | Chinese Acad Sci, State Key Lab Corros & Protect, Met Res Inst, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, ZG,Niu, Y. Effect of chromium on the oxidation of a Fe-10Al alloy at 1000 degrees C[J]. PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5,2005,475-479:685-688. |
| APA | Zhang, ZG,&Niu, Y.(2005).Effect of chromium on the oxidation of a Fe-10Al alloy at 1000 degrees C.PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5,475-479,685-688. |
| MLA | Zhang, ZG,et al."Effect of chromium on the oxidation of a Fe-10Al alloy at 1000 degrees C".PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5 475-479(2005):685-688. |
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