Flow characteristics and intrinsic workability of IN718 superalloy
This study focuses on deformation characteristics of superalloy IN718 by formulation of a new flowstress model and detailed evaluation of intrinsic workability through the generation of three-dimensional (3D) processing maps with the support of optical microstructural observations. Based on thermome...
| Main Authors: | , , , , , |
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| Format: | Article |
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Elsevier
2015
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| Online Access: | https://eprints.nottingham.ac.uk/42952/ |
| _version_ | 1848796609579581440 |
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| author | Chen, Fei Liu, Juan Ou, Hengan Lu, Bin Cui, Zhenshan Long, Hui |
| author_facet | Chen, Fei Liu, Juan Ou, Hengan Lu, Bin Cui, Zhenshan Long, Hui |
| author_sort | Chen, Fei |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This study focuses on deformation characteristics of superalloy IN718 by formulation of a new flowstress model and detailed evaluation of intrinsic workability through the generation of three-dimensional (3D) processing maps with the support of optical microstructural observations. Based on thermomechanical simulation tests using a Gleeble-1500 machine, the flow stress model for superalloy IN718 was built and the flow stress throughout the entire deformation process was described by a peak stress only depending on Zener–Hollomon parameter and strain. The developed model exhibited the strain softening due to dynamic recrystallization (DRX). The intrinsic workability was further investigated by constructing 3D processing maps. The 3D processing maps described the variations of the efficiency of power dissipation and flow instability domains as a function of strain rate, temperature and strain, from which the favourite deformation conditions for thermomechanical processing of IN718 can be established. |
| first_indexed | 2025-11-14T19:50:42Z |
| format | Article |
| id | nottingham-42952 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:50:42Z |
| publishDate | 2015 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-429522020-05-04T17:14:36Z https://eprints.nottingham.ac.uk/42952/ Flow characteristics and intrinsic workability of IN718 superalloy Chen, Fei Liu, Juan Ou, Hengan Lu, Bin Cui, Zhenshan Long, Hui This study focuses on deformation characteristics of superalloy IN718 by formulation of a new flowstress model and detailed evaluation of intrinsic workability through the generation of three-dimensional (3D) processing maps with the support of optical microstructural observations. Based on thermomechanical simulation tests using a Gleeble-1500 machine, the flow stress model for superalloy IN718 was built and the flow stress throughout the entire deformation process was described by a peak stress only depending on Zener–Hollomon parameter and strain. The developed model exhibited the strain softening due to dynamic recrystallization (DRX). The intrinsic workability was further investigated by constructing 3D processing maps. The 3D processing maps described the variations of the efficiency of power dissipation and flow instability domains as a function of strain rate, temperature and strain, from which the favourite deformation conditions for thermomechanical processing of IN718 can be established. Elsevier 2015-08-26 Article PeerReviewed Chen, Fei, Liu, Juan, Ou, Hengan, Lu, Bin, Cui, Zhenshan and Long, Hui (2015) Flow characteristics and intrinsic workability of IN718 superalloy. Materials Science and Engineering: A, 642 . pp. 279-287. ISSN 0921-5093 http://www.sciencedirect.com/science/article/pii/S0921509315301489 doi:10.1016/j.msea.2015.06.093 doi:10.1016/j.msea.2015.06.093 |
| spellingShingle | Chen, Fei Liu, Juan Ou, Hengan Lu, Bin Cui, Zhenshan Long, Hui Flow characteristics and intrinsic workability of IN718 superalloy |
| title | Flow characteristics and intrinsic workability of IN718 superalloy |
| title_full | Flow characteristics and intrinsic workability of IN718 superalloy |
| title_fullStr | Flow characteristics and intrinsic workability of IN718 superalloy |
| title_full_unstemmed | Flow characteristics and intrinsic workability of IN718 superalloy |
| title_short | Flow characteristics and intrinsic workability of IN718 superalloy |
| title_sort | flow characteristics and intrinsic workability of in718 superalloy |
| url | https://eprints.nottingham.ac.uk/42952/ https://eprints.nottingham.ac.uk/42952/ https://eprints.nottingham.ac.uk/42952/ |