Prediction of ductile cracking in the titanium alloy forging process
The control of surface cracking in the forming of titanium alloy forgings is a significant problem in the forging industry. For titanium alloys, the formation of surface cracks is related to temperature, strain rate, and stress state. This study selected the widely used medium to high strength titan...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ad32eb |
| _version_ | 1797255615668551680 |
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| author | Yuan Fan Haicheng Zhang Wuhua Yuan |
| author_facet | Yuan Fan Haicheng Zhang Wuhua Yuan |
| author_sort | Yuan Fan |
| collection | DOAJ |
| description | The control of surface cracking in the forming of titanium alloy forgings is a significant problem in the forging industry. For titanium alloys, the formation of surface cracks is related to temperature, strain rate, and stress state. This study selected the widely used medium to high strength titanium alloy Ti-6Al-4V in the field of forging as the research material, and designed six different shapes of specimens for high-temperature tensile and compression tests. The mechanisms underlying crack formation were analyzed at the microscopic level, and the critical fracture displacement of these tests was extracted. Moreover, their critical fracture strains were obtained through simulations, and a High-temperature damage model was established based on the DF2016 model. The research results showed that cracks through void at grain boundaries propagate and aggregate to form, leading to a fracture mechanism characterized by ductile fracture through micro-pore aggregation. Simulation results demonstrate that the established model accurately predicts the crack of forgings. |
| first_indexed | 2024-04-24T22:08:40Z |
| format | Article |
| id | doaj.art-f42e92817c2f4ffda3745271ac789690 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-04-24T22:08:40Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-f42e92817c2f4ffda3745271ac7896902024-03-20T11:00:22ZengIOP PublishingMaterials Research Express2053-15912024-01-0111303651710.1088/2053-1591/ad32ebPrediction of ductile cracking in the titanium alloy forging processYuan Fan0Haicheng Zhang1Wuhua Yuan2https://orcid.org/0000-0002-6905-7449School of Materials Science and Engineering, Hunan University , Changsha 410082, People’s Republic of ChinaChina National Erzhong Group Deyang Wanhang Die Forging Co., Ltd, Deyang 618013, People’s Republic of ChinaSchool of Materials Science and Engineering, Hunan University , Changsha 410082, People’s Republic of ChinaThe control of surface cracking in the forming of titanium alloy forgings is a significant problem in the forging industry. For titanium alloys, the formation of surface cracks is related to temperature, strain rate, and stress state. This study selected the widely used medium to high strength titanium alloy Ti-6Al-4V in the field of forging as the research material, and designed six different shapes of specimens for high-temperature tensile and compression tests. The mechanisms underlying crack formation were analyzed at the microscopic level, and the critical fracture displacement of these tests was extracted. Moreover, their critical fracture strains were obtained through simulations, and a High-temperature damage model was established based on the DF2016 model. The research results showed that cracks through void at grain boundaries propagate and aggregate to form, leading to a fracture mechanism characterized by ductile fracture through micro-pore aggregation. Simulation results demonstrate that the established model accurately predicts the crack of forgings.https://doi.org/10.1088/2053-1591/ad32ebtitanium alloyhot deformationfiniteelement methodprediction of ductile cracking |
| spellingShingle | Yuan Fan Haicheng Zhang Wuhua Yuan Prediction of ductile cracking in the titanium alloy forging process Materials Research Express titanium alloy hot deformation finiteelement method prediction of ductile cracking |
| title | Prediction of ductile cracking in the titanium alloy forging process |
| title_full | Prediction of ductile cracking in the titanium alloy forging process |
| title_fullStr | Prediction of ductile cracking in the titanium alloy forging process |
| title_full_unstemmed | Prediction of ductile cracking in the titanium alloy forging process |
| title_short | Prediction of ductile cracking in the titanium alloy forging process |
| title_sort | prediction of ductile cracking in the titanium alloy forging process |
| topic | titanium alloy hot deformation finiteelement method prediction of ductile cracking |
| url | https://doi.org/10.1088/2053-1591/ad32eb |
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