| Anisotropic stress rupture properties of the nickel-base single crystal superalloy SRR99 | |
| G. M. Han; J. J. Yu; Y. L. Sun; X. F. Sun; Z. Q. Hu | |
| 2010 | |
| Source Publication | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| ISSN | 0921-5093 |
| Volume | 527Issue:21-22Pages:5383-5390 |
| Abstract | The influence of orientation on the stress rupture properties of a single crystal superalloy SRR99 was investigated at temperatures of 760 and 1040 degrees C. It is found that the creep anisotropic behaviour is pronounced at the lower temperature of 760 degrees C and the stress rupture life ranks in the order [0 0 1] > [1 1 1] > [0 1 1]. Despite the anisotropy of stress rupture life is evidently reduced at the higher temperature, the [1 1 1] orientation exhibits the longest life. At 760 degrees C, EBSD (electron back scattered diffraction) was adopted to measure the lattice rotation and the deduced results indicate that the dominant slip systems are (1 1 2) {1 1 1} during stress rupture test. At 1040 degrees C, the ranking order of the stress rupture life is [1 1 1] > [0 0 1] > [0 1 1] and the single crystal close to [0 1 1] orientation still shows the poorest life. In the [0 0 1] and [1 1 1] samples, regular-gamma raft structure is formed compared with [0 1 1] samples. Further observations made by TEM investigations reveal the underlying deformation mechanisms for crystals with orientations near [0 0 1], [0 1 1] and [1 1 1] under two test conditions. (C) 2010 Elsevier B.V. All rights reserved. |
| description.department | [han, g. m.; yu, j. j.; sun, y. l.; sun, x. f.; hu, z. q.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [han, g. m.] chinese acad sci, grad univ, beijing 100049, peoples r china.;yu, jj (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;jjyu@imr.ac.cn |
| Keyword | Single Crystal Superalloy Stress Rupture Anisotropy Deformation Mechanism Matrix Dislocations Temperature Creep Cmsx-4 Orientation Mechanisms Alloy |
| URL | 查看原文 |
| WOS ID | WOS:000281175300005 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/31135 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | G. M. Han,J. J. Yu,Y. L. Sun,et al. Anisotropic stress rupture properties of the nickel-base single crystal superalloy SRR99[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2010,527(21-22):5383-5390. |
| APA | G. M. Han,J. J. Yu,Y. L. Sun,X. F. Sun,&Z. Q. Hu.(2010).Anisotropic stress rupture properties of the nickel-base single crystal superalloy SRR99.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,527(21-22),5383-5390. |
| MLA | G. M. Han,et al."Anisotropic stress rupture properties of the nickel-base single crystal superalloy SRR99".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 527.21-22(2010):5383-5390. |
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