| Mechanisms and microstructures of2A97 Al-Lialloy under the hot forming with synchronous quenching process | |
| Zhang, Peng1; Chen, Ming-He1; Chen, Wei1,2; Zhang, Shi-Hong3; Xu, Yong3 | |
| Corresponding Author | Chen, Ming-He(meemhchen@nuaa.edu.cn) |
| 2020-09-29 | |
| Source Publication | MICROSCOPY RESEARCH AND TECHNIQUE
 |
| ISSN | 1059-910X |
| Pages | 10 |
| Abstract | Aluminum-lithium alloy is regarded as the most promising light material in the aircraft and aerospace industries. For the production of complex and high-precision parts, the hot forming with synchronous quenching (HFSQ) process has become an effective and attractive forming method. In order to achieve the performance and microstructure evolution of the 2A97 Al-Li alloy under the HFSQ process, the specimens were subjected to solution treatment at 520 degrees C and held at 90 min in the Gleeble 3,500 thermal simulator. Then the hot tensile test with simultaneous quenching was conducted directly at a temperature of 300-500 degrees C and a strain rate of 0.1-0.001 s(-1)with the same equipment. Through analyzing the macroscopic stress-strain curves and microscopic fractures, it was concluded that the optimal forming temperature was 450 degrees C with the strain rate being 0.1 s(-1)and its forming mechanism under the process was presented. To obtain the microstructure evolution of 2A97 Al-Li alloy under the HFSQ process, the material was subjected to constant strain tensile test with synchronous quenching and then treated with two-stage artificial aging 200 degrees C and 6 hr + 165 degrees C and 6 hr. The microstructure of the alloy was observed by means of electron backscattering diffraction (EBSD). And its evolution process and the influence of temperature, strain rate, and strain on the microstructure under the process were attained. |
| Keyword | EBSD fracture hot forming mechanical property |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1002/jemt.23593 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51175252] |
| WOS Research Area | Anatomy & Morphology ; Life Sciences & Biomedicine - Other Topics ; Microscopy |
| WOS Subject | Anatomy & Morphology ; Biology ; Microscopy |
| WOS ID | WOS:000573378100001 |
| Publisher | WILEY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/140788 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Chen, Ming-He |
| Affiliation | 1.Nanjing Univ Aeronaut & Astronaut, Coll Mech & Elect Engn, Nanjing 210016, Peoples R China 2.Chinalco Mat Applicat Res Inst Co Ltd, Suzhou Branch, Suzhou, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Peng,Chen, Ming-He,Chen, Wei,et al. Mechanisms and microstructures of2A97 Al-Lialloy under the hot forming with synchronous quenching process[J]. MICROSCOPY RESEARCH AND TECHNIQUE,2020:10. |
| APA | Zhang, Peng,Chen, Ming-He,Chen, Wei,Zhang, Shi-Hong,&Xu, Yong.(2020).Mechanisms and microstructures of2A97 Al-Lialloy under the hot forming with synchronous quenching process.MICROSCOPY RESEARCH AND TECHNIQUE,10. |
| MLA | Zhang, Peng,et al."Mechanisms and microstructures of2A97 Al-Lialloy under the hot forming with synchronous quenching process".MICROSCOPY RESEARCH AND TECHNIQUE (2020):10. |
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