| 1250℃烧结Fe-28 Al-5 Cr（at．％）合金结构的透射电子显微学表征 | |
| Alternative Title | TEM characterization of the microstructures of Fe-28Al-5Cr （at.%） alloy sintered at 1 250℃ |
| 张可翔; 贺连龙 | |
| 2016 | |
| Source Publication | 电子显微学报
 |
| ISSN | 1000-6281 |
| Volume | 35.0Issue:004Pages:309-313 |
| Abstract | 利用透射电子显微镜（TEM）研究了一种在1250℃下热压烧结的Fe-28Al-5Cr （at．％）合金的显微结构。研究结果表明：基体由DO3型有序相Fe3 Al组成，Cr以固溶方式存在于基体中。α-Al2 O3主要沿Fe3 Al晶界析出，晶内也有少量分布。这些α-Al2 O3析出相颗粒表面通常会形成尖晶石结构的FeAl2 O4包裹层。同时发现基体三叉晶界处有孔洞的形成，且孔洞中松散填充着α-Al2 O3颗粒。在Fe3 Al晶内存在着a／2＜110＞刃型全位错。 |
| Other Abstract | The microstructures of a Fe-28Al-5Cr （ at.%） alloy sintered at 1 250 ℃ was studied by transmission electron microscopy （ TEM） . The result shows that the main phase is DO3 type Fe3 Al phase and the element Cr acts as solute atom in the Fe3 Al grains. There are someα-Al2 O3 precipitations and most of them exist at the Fe3 Al grain boundaries. It is interesting that theseα-Al2 O3 are capsulated by a FeAl2 O4 layer, which is a typical spinel structure. Besides, some micropores were formed at the triple junction of grains, and these micropores were filled with α-Al2 O3 particles incompactly. The typical a/2 〈110〉 edge dislocations existed in the matrix Fe3 Al grains. |
| Keyword | Fe-Al-Cr合金 晶界析出 氧化 位错 |
| Indexed By | CSCD |
| Language | 中文 |
| CSCD ID | CSCD:5765362 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/154028 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | 张可翔,贺连龙. 1250℃烧结Fe-28 Al-5 Cr（at．％）合金结构的透射电子显微学表征[J]. 电子显微学报,2016,35.0(004):309-313. |
| APA | 张可翔,&贺连龙.(2016).1250℃烧结Fe-28 Al-5 Cr（at．％）合金结构的透射电子显微学表征.电子显微学报,35.0(004),309-313. |
| MLA | 张可翔,et al."1250℃烧结Fe-28 Al-5 Cr（at．％）合金结构的透射电子显微学表征".电子显微学报 35.0.004(2016):309-313. |
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