Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/106754
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | en_US |
dc.creator | Xie, B | en_US |
dc.creator | Yu, H | en_US |
dc.creator | Sheng, T | en_US |
dc.creator | Xiong, Y | en_US |
dc.creator | Ning, Y | en_US |
dc.creator | Fu, MW | en_US |
dc.date.accessioned | 2024-06-03T02:24:12Z | - |
dc.date.available | 2024-06-03T02:24:12Z | - |
dc.identifier.issn | 0925-8388 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/106754 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | © 2019 Elsevier B.V. All rights reserved. | en_US |
dc.rights | © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | en_US |
dc.rights | The following publication Xie, B., Yu, H., Sheng, T., Xiong, Y., Ning, Y., & Fu, M. W. (2019). DDRX and CDRX of an as-cast nickel-based superalloy during hot compression at γ′ sub-/super-solvus temperatures. Journal of Alloys and Compounds, 803, 16-29 is available at https://doi.org/10.1016/j.jallcom.2019.06.202. | en_US |
dc.subject | CDRX | en_US |
dc.subject | DDRX | en_US |
dc.subject | Microstructural evolution | en_US |
dc.subject | Nickel-based superalloys | en_US |
dc.title | DDRX and CDRX of an as-cast nickel-based superalloy during hot compression at γ′ sub-/super-solvus temperatures | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 16 | en_US |
dc.identifier.epage | 29 | en_US |
dc.identifier.volume | 803 | en_US |
dc.identifier.doi | 10.1016/j.jallcom.2019.06.202 | en_US |
dcterms.abstract | Taking the importance of γ′ phase into consideration, an as-cast nickel-based superalloy was investigated by uniaxial compression experiments performed at sub-solvus and super-solvus temperatures. Several different strains were utilized to trace the processes of deformation and microstructural evolution. Electron backscatter diffraction was employed to characterize the microstructures. The results reveal that the volume fraction of DRX grains increased with strain at both sub-solvus and super-solvus temperatures, and also the fraction of high angle grain boundaries. Meanwhile, both the correlated and uncorrelated misorientations gradually approached the random distribution curves during continuous strains. Specially, the fast migration of grain boundaries caused by the unpinning from γ′ particles promoted twin nucleation and generated a number of twins at sub-solvus temperatures. Sub-solvus deformations were found to be more efficient to weaken the initial textures of as-cast superalloys. Finally, it was confirmed that discontinuous dynamic recrystallization (DDRX) dominated the DRX process during the hot deformation carried out at both sub-solvus and super-solvus temperatures. Continuous dynamic recrystallization (CDRX) was the second mechanism, and played a very important role during plastic deformation at sub-solvus temperatures, which is different from the DRX mechanisms reported in the fine-grain structures of wrought billets. The findings improve the understanding of DDRX and CDRX, which does benefit to the accurate control of microstructures of nickel-based superalloys, and also tailoring the properties of final components used in aero-engine. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Journal of alloys and compounds, 30 Sept 2019, v. 803, p. 16-29 | en_US |
dcterms.isPartOf | Journal of alloys and compounds | en_US |
dcterms.issued | 2019-09-30 | - |
dc.identifier.scopus | 2-s2.0-85067884407 | - |
dc.identifier.eissn | 1873-4669 | en_US |
dc.description.validate | 202405 bcwh | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0394 | - |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | National Natural Science Foundation of China; Fundamental Research Funds for the Central Universities | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 55329380 | - |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Fu_Ddrx_Cdrx_As-Cast.pdf | Pre-Published version | 3.51 MB | Adobe PDF | View/Open |
Page views
12
Citations as of Jun 30, 2024
Downloads
2
Citations as of Jun 30, 2024
SCOPUSTM
Citations
76
Citations as of Jun 21, 2024
WEB OF SCIENCETM
Citations
71
Citations as of Jun 27, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.