Fatigue and anisotropic behavior of wire-arc additive manufactured TC17 titanium alloy
Wire-arc additive manufacturing (WAAM) was used in aeronautical engineering due to its low equipment cost and ability to create complex shapes. However, the fatigue behavior of WAAM titanium alloy, specifically for low cycle fatigue (LCF), was poorly studied. This paper investigated the microstructu...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423032787 |
| _version_ | 1827368233475244032 |
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| author | Banglong Yu Zhihao Chen Ping Wang Yong Liu Xiaoguo Song Pingsha Dong |
| author_facet | Banglong Yu Zhihao Chen Ping Wang Yong Liu Xiaoguo Song Pingsha Dong |
| author_sort | Banglong Yu |
| collection | DOAJ |
| description | Wire-arc additive manufacturing (WAAM) was used in aeronautical engineering due to its low equipment cost and ability to create complex shapes. However, the fatigue behavior of WAAM titanium alloy, specifically for low cycle fatigue (LCF), was poorly studied. This paper investigated the microstructure and mechanical behavior of WAAM TC17 in both vertical and horizontal orientations. Fully reversed LCF tests were conducted on specimens with varying strain amplitudes from ±0.4 % to ±1.2 %. The results found that the ultimate tensile and yield strength were similar for both vertical and horizontal samples, but the elongation in the horizontal orientation was approximately 60 % lower than that in the vertical orientation. Considering the cyclic loading behavior, both vertical and horizontal samples exhibited cyclic softening characteristics at high strain amplitudes (0.8%–1.2 %). Additionally, the cyclic softening rate (CSR) of horizontal samples exhibited a higher than that of vertical samples at high strain amplitude. The LCF cracks of WAAM TC17 were initiated from the surface and internal defects of the samples. The LCF performance of the horizontal samples was found to decrease than that of vertical samples. Specifically, the fatigue performance of the horizontal samples is lower by 36.7 % compared to the vertical samples when the number of cycles is 103. |
| first_indexed | 2024-03-08T09:28:38Z |
| format | Article |
| id | doaj.art-28f33ee3680446da9ff856fcfef1e761 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-08T09:28:38Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-28f33ee3680446da9ff856fcfef1e7612024-01-31T05:44:08ZengElsevierJournal of Materials Research and Technology2238-78542024-01-012834633474Fatigue and anisotropic behavior of wire-arc additive manufactured TC17 titanium alloyBanglong Yu0Zhihao Chen1Ping Wang2Yong Liu3Xiaoguo Song4Pingsha Dong5State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Civil Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Ocean Engineering, Harbin Institute of Technology at Weihai, Weihai, 264209, China; Corresponding author.School of Ocean Engineering, Harbin Institute of Technology at Weihai, Weihai, 264209, ChinaState Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China; Shandong Institute of Shipbuilding Technology, Weihai 264209, ChinaDepartment of Naval Architecture and Marine Engineering, University of Michigan, Ann Arbor 48109, USAWire-arc additive manufacturing (WAAM) was used in aeronautical engineering due to its low equipment cost and ability to create complex shapes. However, the fatigue behavior of WAAM titanium alloy, specifically for low cycle fatigue (LCF), was poorly studied. This paper investigated the microstructure and mechanical behavior of WAAM TC17 in both vertical and horizontal orientations. Fully reversed LCF tests were conducted on specimens with varying strain amplitudes from ±0.4 % to ±1.2 %. The results found that the ultimate tensile and yield strength were similar for both vertical and horizontal samples, but the elongation in the horizontal orientation was approximately 60 % lower than that in the vertical orientation. Considering the cyclic loading behavior, both vertical and horizontal samples exhibited cyclic softening characteristics at high strain amplitudes (0.8%–1.2 %). Additionally, the cyclic softening rate (CSR) of horizontal samples exhibited a higher than that of vertical samples at high strain amplitude. The LCF cracks of WAAM TC17 were initiated from the surface and internal defects of the samples. The LCF performance of the horizontal samples was found to decrease than that of vertical samples. Specifically, the fatigue performance of the horizontal samples is lower by 36.7 % compared to the vertical samples when the number of cycles is 103.http://www.sciencedirect.com/science/article/pii/S2238785423032787Wire arc additive manufacturingTitanium alloyTensile propertyLow cycle fatigueAnisotropy |
| spellingShingle | Banglong Yu Zhihao Chen Ping Wang Yong Liu Xiaoguo Song Pingsha Dong Fatigue and anisotropic behavior of wire-arc additive manufactured TC17 titanium alloy Journal of Materials Research and Technology Wire arc additive manufacturing Titanium alloy Tensile property Low cycle fatigue Anisotropy |
| title | Fatigue and anisotropic behavior of wire-arc additive manufactured TC17 titanium alloy |
| title_full | Fatigue and anisotropic behavior of wire-arc additive manufactured TC17 titanium alloy |
| title_fullStr | Fatigue and anisotropic behavior of wire-arc additive manufactured TC17 titanium alloy |
| title_full_unstemmed | Fatigue and anisotropic behavior of wire-arc additive manufactured TC17 titanium alloy |
| title_short | Fatigue and anisotropic behavior of wire-arc additive manufactured TC17 titanium alloy |
| title_sort | fatigue and anisotropic behavior of wire arc additive manufactured tc17 titanium alloy |
| topic | Wire arc additive manufacturing Titanium alloy Tensile property Low cycle fatigue Anisotropy |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423032787 |
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