| Influence of high-temperature air pre-exposure on mechanical strength of a directionally solidified cobalt-base superalloy | |
| W. H. Jiang; X. F. Sun; H. R. Guan; Z. Q. Hu | |
| 2001 | |
| Source Publication | Journal of Materials Science
 |
| ISSN | 0022-2461 |
| Volume | 36Issue:4Pages:859-863 |
| Abstract | The present work investigated the influence of air pre-exposure at 850 degreesC for 1000 h on the mechanical properties and microstructures of the directionally solidified cobalt-base alloy DZ40M. The results show that the air pre-exposure did not embrittle the alloy, but resulted in a marked strengthening. Microstructural observations and energy dispersive X-ray spectroscopy (EDS) indicates that the air pre-exposure caused a substantial external and internal oxidation, which is assumed to protect the alloy from being oxidized further and make a significant contribution to alloy strengthening, respectively. The immunity of the alloy to air embrittlement is attributed to elimination of transverse grain boundaries by directional solidification. (C) 2001 Kluwer Academic Publishers. |
| description.department | chinese acad sci, inst met res, shenyang 110015, peoples r china. shenyang univ technol, dept met mat engn, shenyang 110023, peoples r china.;jiang, wh (reprint author), chinese acad sci, inst met res, 72 wenhua rd, shenyang 110015, peoples r china |
| Keyword | Precipitation |
| URL | 查看原文 |
| WOS ID | WOS:000166860400011 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/36681 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | W. H. Jiang,X. F. Sun,H. R. Guan,et al. Influence of high-temperature air pre-exposure on mechanical strength of a directionally solidified cobalt-base superalloy[J]. Journal of Materials Science,2001,36(4):859-863. |
| APA | W. H. Jiang,X. F. Sun,H. R. Guan,&Z. Q. Hu.(2001).Influence of high-temperature air pre-exposure on mechanical strength of a directionally solidified cobalt-base superalloy.Journal of Materials Science,36(4),859-863. |
| MLA | W. H. Jiang,et al."Influence of high-temperature air pre-exposure on mechanical strength of a directionally solidified cobalt-base superalloy".Journal of Materials Science 36.4(2001):859-863. |
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