| Influences of yttrium on adhesion of oxide scale of Fe-Cr-Al alloy |
| Xin, L; Li, MS; Zhou, LJ; Wang, FH; Li, TF
|
| 2001-06-01
|
| 发表期刊 | JOURNAL OF RARE EARTHS
 |
| ISSN | 1002-0721
|
| 卷号 | 19期号:2页码:117-121 |
| 摘要 | The 1100 degreesC isothermal oxidation behavior of Fe-23Cr-5Al alloy modified by yttrium addition was studied by means of thermogravimetric analysis, scanning electron microscopy and energy dispersive X-ray analysis. Yttrium was added to this alloy in the forms of metallic addition, yttrium oxide and ion implant. Cracking and spalling occurred on the convoluted scale formed on Y-free alloy and exposed the substrate. A flat dense scale without spallation was formed on the yttrium alloying addition or yttrium oxide dispersion alloy. The scale adhesion was also improved by 1x10(17)Y(+)/cm(2)-implantation. The results indicate the convoluted morphology of the scale on Fe-23Cr-5Al-0.21Ti alloy is related to the growth mechanism of the alumina scale, and the spallation of the scale is related to sulfur segregation at the scale/alloy interface. The main reason that the adhesion of alumina scale is improved by yttrium addition lies in the following. Yttrium is liable to form a stable yttrium sulfide with sulfur in the alloy and prevent sulfur interface from segregation. Another reason is that the growth mechanism of alumina scale is changed by yttrium addition. |
| 关键词 | rare earths
yttrium
Fe-Cr-Al alloy
isothermal oxidation
|
| 收录类别 | SCI
|
| 语种 | 英语
|
| WOS研究方向 | Chemistry
|
| WOS类目 | Chemistry, Applied
|
| WOS记录号 | WOS:000168494900008
|
| 出版者 | INT ACADEMIC PUBL
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/113001
|
| 专题 | 中国科学院金属研究所
|
| 作者单位 | Chinese Acad Sci, Inst Corros & Protect Met, Corros Sci Lab, Shenyang 110015, Peoples R China
|
推荐引用方式
GB/T 7714 |
Xin, L,Li, MS,Zhou, LJ,et al. Influences of yttrium on adhesion of oxide scale of Fe-Cr-Al alloy[J]. JOURNAL OF RARE EARTHS,2001,19(2):117-121.
|
| APA |
Xin, L,Li, MS,Zhou, LJ,Wang, FH,&Li, TF.(2001).Influences of yttrium on adhesion of oxide scale of Fe-Cr-Al alloy.JOURNAL OF RARE EARTHS,19(2),117-121.
|
| MLA |
Xin, L,et al."Influences of yttrium on adhesion of oxide scale of Fe-Cr-Al alloy".JOURNAL OF RARE EARTHS 19.2(2001):117-121.
|
修改评论