Hot deformation characteristics of hot extruded FGH95 superalloys
The thermal compression deformation behaviors of the hot extruded (HEX) FGH95 alloys were investigated systematically using the Gleeble 3800D thermal-mechanical simulator in the strain rate of 0.001~1.000 s−1 at the deformation temperature range of 1050~1120 ℃. The constitutive equations of the hot...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Powder Metallurgy Technology
2024-02-01
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| Series: | Fenmo yejin jishu |
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| Online Access: | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2021080002 |
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| author | DUAN Jiping TANG Xianglin SHENG Junying PENG Zichao WANG Xuqing ZOU Jinwen |
| author_facet | DUAN Jiping TANG Xianglin SHENG Junying PENG Zichao WANG Xuqing ZOU Jinwen |
| author_sort | DUAN Jiping |
| collection | DOAJ |
| description | The thermal compression deformation behaviors of the hot extruded (HEX) FGH95 alloys were investigated systematically using the Gleeble 3800D thermal-mechanical simulator in the strain rate of 0.001~1.000 s−1 at the deformation temperature range of 1050~1120 ℃. The constitutive equations of the hot extruded FGH95 alloys were derived from the stress-strain curves obtained in the isothermal compression tests. Furthermore, the hot processing maps were established based on the dynamic models. In the results, the corresponding material constants of the constitutive equation are determined as Q=300.925 kJ·mol−1, α=0.01139 MPa−1, and n=1.86. Compared with the hot isostatic pressing (HIP) alloys, the activation energy of the hot extruded FGH95 alloys is declined by more than 50%. According to the energy dissipation efficiency and the microstructure analysis of the hot extruded FGH95 alloys, the processing safety zone and instability zone are identified during the hot extrusion process. Ultimately, the optimal processing conditions of the FGH95 alloys are proposed as the strain rate of 0.010~0.100 s−1 and the deformation temperature of 1050~1120 ℃. |
| format | Article |
| id | doaj-art-1341eadec9d94c20b805ec9876519a8b |
| institution | Kabale University |
| issn | 1001-3784 |
| language | zho |
| publishDate | 2024-02-01 |
| publisher | Editorial Office of Powder Metallurgy Technology |
| record_format | Article |
| series | Fenmo yejin jishu |
| spelling | doaj-art-1341eadec9d94c20b805ec9876519a8b2024-11-13T05:46:37ZzhoEditorial Office of Powder Metallurgy TechnologyFenmo yejin jishu1001-37842024-02-01421364410.19591/j.cnki.cn11-1974/tf.2021080002Hot deformation characteristics of hot extruded FGH95 superalloysDUAN Jiping0TANG Xianglin1SHENG Junying2PENG Zichao3WANG Xuqing4ZOU Jinwen5AECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaAviation Military Representative Office in Zhuzhou Area, Army Equipment Department, Zhuzhou 412002, ChinaAECC South Industry Co., Ltd., Zhuzhou 412001, ChinaAECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaAECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaAECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaThe thermal compression deformation behaviors of the hot extruded (HEX) FGH95 alloys were investigated systematically using the Gleeble 3800D thermal-mechanical simulator in the strain rate of 0.001~1.000 s−1 at the deformation temperature range of 1050~1120 ℃. The constitutive equations of the hot extruded FGH95 alloys were derived from the stress-strain curves obtained in the isothermal compression tests. Furthermore, the hot processing maps were established based on the dynamic models. In the results, the corresponding material constants of the constitutive equation are determined as Q=300.925 kJ·mol−1, α=0.01139 MPa−1, and n=1.86. Compared with the hot isostatic pressing (HIP) alloys, the activation energy of the hot extruded FGH95 alloys is declined by more than 50%. According to the energy dissipation efficiency and the microstructure analysis of the hot extruded FGH95 alloys, the processing safety zone and instability zone are identified during the hot extrusion process. Ultimately, the optimal processing conditions of the FGH95 alloys are proposed as the strain rate of 0.010~0.100 s−1 and the deformation temperature of 1050~1120 ℃.https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2021080002powder superalloysthermal compression deformationconstitutive equationhot processing map |
| spellingShingle | DUAN Jiping TANG Xianglin SHENG Junying PENG Zichao WANG Xuqing ZOU Jinwen Hot deformation characteristics of hot extruded FGH95 superalloys Fenmo yejin jishu powder superalloys thermal compression deformation constitutive equation hot processing map |
| title | Hot deformation characteristics of hot extruded FGH95 superalloys |
| title_full | Hot deformation characteristics of hot extruded FGH95 superalloys |
| title_fullStr | Hot deformation characteristics of hot extruded FGH95 superalloys |
| title_full_unstemmed | Hot deformation characteristics of hot extruded FGH95 superalloys |
| title_short | Hot deformation characteristics of hot extruded FGH95 superalloys |
| title_sort | hot deformation characteristics of hot extruded fgh95 superalloys |
| topic | powder superalloys thermal compression deformation constitutive equation hot processing map |
| url | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2021080002 |
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