| Investigation on low cycle fatigue behaviors of the [001] and [011] oriental single crystal superalloy at 760 degrees C | |
| Liu, Liu1,2; Meng, Jie2; Liu, Jinlai2; Zhang, Haifeng1,3; Sun, Xudong1; Zhou, Yizhou2 | |
| Corresponding Author | Meng, Jie(jmeng@imr.ac.cn) |
| 2018-09-12 | |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| ISSN | 0921-5093 |
| Volume | 734Pages:1-6 |
| Abstract | Low cycle fatigue behaviors of a 3Re Ni-base single crystal superalloy with the [001] and [011] orientations have been investigated. At 760 degrees C, both the [001] and [011] specimens fracture along crystallographic planes. However, the results also indicate a large difference in fatigue deformation behaviors of these two oriented specimens, which is reflected in different deformation mechanisms. For the cyclic stability behavior of the [001] specimens, uneven cross-slip and tangled dislocations and continuous stacking faults cause local stress concentration in the matrix and have an influence on work hardening, while the stress concentration is reduced by dislocation pairs and stacking faults shearing gamma' phases. With respect to the [011] specimens, high density matrix dislocations, parallel dislocations and secondary cracks increase resistance to dislocation movement, resulting in cyclic hardening. We discovered continuous stacking faults that have been rarely reported in the low cycle fatigue. Also, these findings might bring about substantial insights that fatigue fracture and deformation mechanisms are responsible for low cycle fatigue anisotropy at intermediate temperature. |
| Keyword | Single crystal superalloy Low cycle fatigue Anisotropy Deformation mechanism |
| Funding Organization | National Natural Science Foundation of China ; Shenyang Science and Technology Project |
| DOI | 10.1016/j.msea.2018.07.078 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51571196] ; National Natural Science Foundation of China[51671188] ; National Natural Science Foundation of China[5160119] ; Shenyang Science and Technology Project[17-101-2-00] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000445993900001 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/129601 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Meng, Jie |
| Affiliation | 1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, Liu,Meng, Jie,Liu, Jinlai,et al. Investigation on low cycle fatigue behaviors of the [001] and [011] oriental single crystal superalloy at 760 degrees C[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,734:1-6. |
| APA | Liu, Liu,Meng, Jie,Liu, Jinlai,Zhang, Haifeng,Sun, Xudong,&Zhou, Yizhou.(2018).Investigation on low cycle fatigue behaviors of the [001] and [011] oriental single crystal superalloy at 760 degrees C.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,734,1-6. |
| MLA | Liu, Liu,et al."Investigation on low cycle fatigue behaviors of the [001] and [011] oriental single crystal superalloy at 760 degrees C".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 734(2018):1-6. |
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