| Microstructure evolution and deformation features of single crystal nickel-based superalloy containing 4.2% Re during creep | |
| Alternative Title | Microstructure evolution and deformation features of single crystal nickel-based superalloy containing 4.2%Re during creep |
| Tian Sugui; Liang Fushun; Li Anan; Li Jingjing; Qian Benjiang | |
| 2011 | |
| Source Publication | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| ISSN | 1003-6326 |
| Volume | 21Issue:7Pages:1532-1537 |
| Abstract | By means of microstructure observation and measurement of creep properties, the high temperature creep behaviors of a single crystal nickel-based superalloy containing Re were investigated. Results show that the single crystal nickel-based superalloy containing 4.2% Re possesses a better creep resistance at high temperature. After being crept up to fracture, the various morphologies are displayed in the different areas of the sample, and the gamma' phase is transformed into the rafted structure along the direction vertical to the applied stress axis in the regions far from the fracture. But the coarsening and twisting extents of the rafted gamma' phase increase in the regions near the fracture, which is attributed to the occurrence of the larger plastic deformation. In the later stage of creep, the deformation mechanism of the alloy is that the dislocations with 0 (1) over bar1 and 011 trace features shear into the rafted gamma' phase. The main/secondary slipping dislocations are alternately activated to twist the rafted gamma' phase up to the occurrence of creep fracture, which is thought to be the fracture mechanism of the alloy during creep. |
| Other Abstract | By means of microstructure observation and measurement of creep properties,the high temperature creep behaviors of a single crystal nickel-based superalloy containing Re were investigated.Results show that the single crystal nickel-based superalloy containing 4.2%Re possesses a better creep resistance at high temperature.After being crept up to fracture,the various morphologies are displayed in the different areas of the sample,and theγ′phase is transformed into the rafted structure along the direction vertical to the applied stress axis in the regions far from the fracture.But the coarsening and twisting extents of the raftedγ′phase increase in the regions near the fracture,which is attributed to the occurrence of the larger plastic deformation.In the later stage of creep,the deformation mechanism of the alloy is that the dislocations with011and011trace features shear into the raftedγ′phase.The main/secondary slipping dislocations are alternately activated to twist the raftedγ′phase up to the occurrence of creep fracture,which is thought to be the fracture mechanism of the alloy during creep. |
| Keyword | single crystal nickel-based superalloy Re creep microstructure evolution deformation mechanism |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Natural Science Foundation of China] |
| CSCD ID | CSCD:4256406 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/149081 |
| 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 | Tian Sugui,Liang Fushun,Li Anan,et al. Microstructure evolution and deformation features of single crystal nickel-based superalloy containing 4.2% Re during creep[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2011,21(7):1532-1537. |
| APA | Tian Sugui,Liang Fushun,Li Anan,Li Jingjing,&Qian Benjiang.(2011).Microstructure evolution and deformation features of single crystal nickel-based superalloy containing 4.2% Re during creep.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,21(7),1532-1537. |
| MLA | Tian Sugui,et al."Microstructure evolution and deformation features of single crystal nickel-based superalloy containing 4.2% Re during creep".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 21.7(2011):1532-1537. |
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