| Anisotropy of high temperature stress rupture property of a Ni base single crystal superalloy | |
| Liu, JL; Jin, T; Zhang, JH; Hu, ZQ | |
| Corresponding Author | Liu, JL(jlliu@imr.ac.cn) |
| 2001-12-18 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 37Issue:12Pages:1233-1237 |
| Abstract | The stress rupture test was conducted to a Ni base single crystal superalloy along [001],[011] and [111] orientations. The results show that the [001] oriented specimen has the best ductility and the [111] oriented specimen has the longest lifetime ,while the [011] oriented specimen is lower at these two properties. The longest lifetime in [111] orientation is resulting from the formation of dislocation networks due to multislip and its lower resolved shear stress. The [001] orientation specimen displays the best ductility owing to the blunting effect to microcrack stemming from multiple equivalent slip systems. The [011] oriented specimen has lower lifetime and bad ductility because of its higher resolved stress and less slip systems, even the deformation twinning also promotes the initiation of crack. A vine-like gamma' is formed along dendrite direction in all three orientations during test, which is caused by the small misorietation between dendrites and this vine-like gamma' can act as an important crack initiation site. |
| Keyword | Ni base single crystal superalloy stress rupture property anisotropy |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000173281800001 |
| Publisher | SCIENCE CHINA PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/113484 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, JL |
| Affiliation | Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, JL,Jin, T,Zhang, JH,et al. Anisotropy of high temperature stress rupture property of a Ni base single crystal superalloy[J]. ACTA METALLURGICA SINICA,2001,37(12):1233-1237. |
| APA | Liu, JL,Jin, T,Zhang, JH,&Hu, ZQ.(2001).Anisotropy of high temperature stress rupture property of a Ni base single crystal superalloy.ACTA METALLURGICA SINICA,37(12),1233-1237. |
| MLA | Liu, JL,et al."Anisotropy of high temperature stress rupture property of a Ni base single crystal superalloy".ACTA METALLURGICA SINICA 37.12(2001):1233-1237. |
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