On Post-Weld Heat Treatment of a Single Crystal Nickel-Based Superalloy Joint by Linear Friction Welding
Three types of post-weld heat treatment (PWHT), i.e. solution treatment + primary aging + secondary aging (I), secondary aging (II), and primary aging + secondary aging (III), were applied to a single crystal nickel-based superalloy joint made with linear friction welding (LFW). The results show t...
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| Format: | Article |
| Language: | English |
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Eastern Macedonia and Thrace Institute of Technology
2015-09-01
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| Series: | Journal of Engineering Science and Technology Review |
| Subjects: | |
| Online Access: | http://www.jestr.org/downloads/Volume8Issue6/fulltext86112015.pdf |
| _version_ | 1818000109685702656 |
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| author | T. J. Ma Y. H. Yang W. Y. Li Y. Zhang M. Yan |
| author_facet | T. J. Ma Y. H. Yang W. Y. Li Y. Zhang M. Yan |
| author_sort | T. J. Ma |
| collection | DOAJ |
| description | Three types of post-weld heat treatment (PWHT), i.e. solution treatment + primary aging + secondary aging (I),
secondary aging (II), and primary aging + secondary aging (III), were applied to a single crystal nickel-based superalloy
joint made with linear friction welding (LFW). The results show that the grains in the thermomechanically affected zone
(TMAZ) coarsen seriously and the primary γ' phase in the TMAZ precipitates unevenly after PWHT I. The primary γ'
phase in the TMAZ and weld zone (WZ) precipitates insufficiently and fine granular secondary γ' phase is observed in
the matrix after PWHT II. After PWHT III, the primary γ' phase precipitates more sufficiently and evenly compared to
PWHTs I and II. Moreover, the grains in the TMAZ have not coarsened seriously and fine granular secondary γ' phase is
not found after PWHT III. PWHT III seems more suitable to the LFWed single crystal nickel-based superalloy joints
when performing PWHT. |
| first_indexed | 2024-04-14T03:17:36Z |
| format | Article |
| id | doaj.art-00aa8eaf5f654cc2b9c5c61963993cd5 |
| institution | Directory Open Access Journal |
| issn | 1791-2377 1791-2377 |
| language | English |
| last_indexed | 2024-04-14T03:17:36Z |
| publishDate | 2015-09-01 |
| publisher | Eastern Macedonia and Thrace Institute of Technology |
| record_format | Article |
| series | Journal of Engineering Science and Technology Review |
| spelling | doaj.art-00aa8eaf5f654cc2b9c5c61963993cd52022-12-22T02:15:24ZengEastern Macedonia and Thrace Institute of TechnologyJournal of Engineering Science and Technology Review1791-23771791-23772015-09-01864043On Post-Weld Heat Treatment of a Single Crystal Nickel-Based Superalloy Joint by Linear Friction WeldingT. J. Ma0Y. H. Yang1W. Y. Li2Y. Zhang3M. Yan4State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, PR ChinaState Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, PR ChinaState Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, PR ChinaState Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, PR ChinaState Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, PR ChinaThree types of post-weld heat treatment (PWHT), i.e. solution treatment + primary aging + secondary aging (I), secondary aging (II), and primary aging + secondary aging (III), were applied to a single crystal nickel-based superalloy joint made with linear friction welding (LFW). The results show that the grains in the thermomechanically affected zone (TMAZ) coarsen seriously and the primary γ' phase in the TMAZ precipitates unevenly after PWHT I. The primary γ' phase in the TMAZ and weld zone (WZ) precipitates insufficiently and fine granular secondary γ' phase is observed in the matrix after PWHT II. After PWHT III, the primary γ' phase precipitates more sufficiently and evenly compared to PWHTs I and II. Moreover, the grains in the TMAZ have not coarsened seriously and fine granular secondary γ' phase is not found after PWHT III. PWHT III seems more suitable to the LFWed single crystal nickel-based superalloy joints when performing PWHT.http://www.jestr.org/downloads/Volume8Issue6/fulltext86112015.pdfLinear friction welding; Nickel-based single crystal superalloy; Post-weld heat treatment |
| spellingShingle | T. J. Ma Y. H. Yang W. Y. Li Y. Zhang M. Yan On Post-Weld Heat Treatment of a Single Crystal Nickel-Based Superalloy Joint by Linear Friction Welding Journal of Engineering Science and Technology Review Linear friction welding; Nickel-based single crystal superalloy; Post-weld heat treatment |
| title | On Post-Weld Heat Treatment of a Single Crystal Nickel-Based Superalloy Joint by Linear Friction Welding |
| title_full | On Post-Weld Heat Treatment of a Single Crystal Nickel-Based Superalloy Joint by Linear Friction Welding |
| title_fullStr | On Post-Weld Heat Treatment of a Single Crystal Nickel-Based Superalloy Joint by Linear Friction Welding |
| title_full_unstemmed | On Post-Weld Heat Treatment of a Single Crystal Nickel-Based Superalloy Joint by Linear Friction Welding |
| title_short | On Post-Weld Heat Treatment of a Single Crystal Nickel-Based Superalloy Joint by Linear Friction Welding |
| title_sort | on post weld heat treatment of a single crystal nickel based superalloy joint by linear friction welding |
| topic | Linear friction welding; Nickel-based single crystal superalloy; Post-weld heat treatment |
| url | http://www.jestr.org/downloads/Volume8Issue6/fulltext86112015.pdf |
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