A novel laser continuous powder bed fusion of TA15 titanium alloy: Microstructure and properties
This work presents a novel laser continuous powder bed fusion (L-CPBF) process technique, tailored for the additive manufacturing of intricate components with annular hollow structures, emphasizing both precision and efficiency. Utilizing this advanced L-CPBF method, Ti-6.5Al-2Zr-Mo-V (TA15) titaniu...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-01-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423033045 |
| _version_ | 1797338264309334016 |
|---|---|
| author | Zhen Chen Song Shen Laixia Yang Jie Dai Suli Li Qidong Xie Guoyin Xie |
| author_facet | Zhen Chen Song Shen Laixia Yang Jie Dai Suli Li Qidong Xie Guoyin Xie |
| author_sort | Zhen Chen |
| collection | DOAJ |
| description | This work presents a novel laser continuous powder bed fusion (L-CPBF) process technique, tailored for the additive manufacturing of intricate components with annular hollow structures, emphasizing both precision and efficiency. Utilizing this advanced L-CPBF method, Ti-6.5Al-2Zr-Mo-V (TA15) titanium alloy samples were successfully fabricated, and their microstructures and properties were investigated. The optimized process parameter window for L-CPBF processing of TA15 was determined through Taguchi experiments, ranging from 100 to 125 J/mm3, with the relative density of the samples achieved an outstanding 99.95%. Microstructural evolution under varying volumetric energy densities (VED) was revealed through characterization methods such as SEM and EBSD. The formation of acicular α′-martensites was observed during initial the cooling phase, with thermal cycling temperature playing a pivotal role in the development of martensites of varying sizes. Furthermore, through process optimization, remarkable mechanical properties, with a tensile strength of 1200.5 ± 98.5 MPa, a yield strength of 1109 ± 102 MPa, and an elongation of 7.05 ± 1.35% were achieved. These mechanical properties are comparable to those of TA15 alloys prepared by traditional reciprocating scraper powder spreading L-PBF. However, our approach boasts a substantial increase in manufacturing efficiency, surpassing the traditional method by over 45%. Collectively, this study offers invaluable theoretical and experimental insights, paving the way for accelerated additive manufacturing of hollow annular components in demanding sectors such as aerospace and beyond. |
| first_indexed | 2024-03-08T09:28:31Z |
| format | Article |
| id | doaj.art-0b7ed3ab9d84457abdbc418c61c135d4 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-08T09:28:31Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-0b7ed3ab9d84457abdbc418c61c135d42024-01-31T05:44:14ZengElsevierJournal of Materials Research and Technology2238-78542024-01-012836763686A novel laser continuous powder bed fusion of TA15 titanium alloy: Microstructure and propertiesZhen Chen0Song Shen1Laixia Yang2Jie Dai3Suli Li4Qidong Xie5Guoyin Xie6State Key Laboratory of Manufacturing System Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, China; National Institute Corporation of Additive Manufacturing Xi’an, Shaanxi, 710018, China; Corresponding author. State Key Laboratory of Manufacturing System Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, China.College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi, 710054, ChinaCollege of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi, 710054, China; Corresponding author.College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi, 710054, ChinaCollege of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi, 710054, ChinaState Key Laboratory of Manufacturing System Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, ChinaAECC Aviation Power Co., Ltd, Xi’an, Shaanxi, 710038, ChinaThis work presents a novel laser continuous powder bed fusion (L-CPBF) process technique, tailored for the additive manufacturing of intricate components with annular hollow structures, emphasizing both precision and efficiency. Utilizing this advanced L-CPBF method, Ti-6.5Al-2Zr-Mo-V (TA15) titanium alloy samples were successfully fabricated, and their microstructures and properties were investigated. The optimized process parameter window for L-CPBF processing of TA15 was determined through Taguchi experiments, ranging from 100 to 125 J/mm3, with the relative density of the samples achieved an outstanding 99.95%. Microstructural evolution under varying volumetric energy densities (VED) was revealed through characterization methods such as SEM and EBSD. The formation of acicular α′-martensites was observed during initial the cooling phase, with thermal cycling temperature playing a pivotal role in the development of martensites of varying sizes. Furthermore, through process optimization, remarkable mechanical properties, with a tensile strength of 1200.5 ± 98.5 MPa, a yield strength of 1109 ± 102 MPa, and an elongation of 7.05 ± 1.35% were achieved. These mechanical properties are comparable to those of TA15 alloys prepared by traditional reciprocating scraper powder spreading L-PBF. However, our approach boasts a substantial increase in manufacturing efficiency, surpassing the traditional method by over 45%. Collectively, this study offers invaluable theoretical and experimental insights, paving the way for accelerated additive manufacturing of hollow annular components in demanding sectors such as aerospace and beyond.http://www.sciencedirect.com/science/article/pii/S2238785423033045Laser continuous powder bed fusionTA15MicrostructureMechanical properties |
| spellingShingle | Zhen Chen Song Shen Laixia Yang Jie Dai Suli Li Qidong Xie Guoyin Xie A novel laser continuous powder bed fusion of TA15 titanium alloy: Microstructure and properties Journal of Materials Research and Technology Laser continuous powder bed fusion TA15 Microstructure Mechanical properties |
| title | A novel laser continuous powder bed fusion of TA15 titanium alloy: Microstructure and properties |
| title_full | A novel laser continuous powder bed fusion of TA15 titanium alloy: Microstructure and properties |
| title_fullStr | A novel laser continuous powder bed fusion of TA15 titanium alloy: Microstructure and properties |
| title_full_unstemmed | A novel laser continuous powder bed fusion of TA15 titanium alloy: Microstructure and properties |
| title_short | A novel laser continuous powder bed fusion of TA15 titanium alloy: Microstructure and properties |
| title_sort | novel laser continuous powder bed fusion of ta15 titanium alloy microstructure and properties |
| topic | Laser continuous powder bed fusion TA15 Microstructure Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423033045 |
| work_keys_str_mv | AT zhenchen anovellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties AT songshen anovellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties AT laixiayang anovellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties AT jiedai anovellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties AT sulili anovellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties AT qidongxie anovellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties AT guoyinxie anovellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties AT zhenchen novellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties AT songshen novellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties AT laixiayang novellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties AT jiedai novellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties AT sulili novellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties AT qidongxie novellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties AT guoyinxie novellasercontinuouspowderbedfusionofta15titaniumalloymicrostructureandproperties |