Laser additive manufacturing of bimetallic structure from TC4 to IN718 via Ta/Cu multi-interlayer
Titanium alloys and nickel-based alloys have their own unique properties, and the bimetallic structure composed of the two alloys can be widely used in the aerospace field. However, the bimetallic structure which is fabricated by directly joining titanium alloys and nickel-based alloys via tradition...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/abce21 |
| _version_ | 1827869232691412992 |
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| author | Chenyang Wang Chun Shang Zhanqi Liu Guojian Xu Xiangyu Liu |
| author_facet | Chenyang Wang Chun Shang Zhanqi Liu Guojian Xu Xiangyu Liu |
| author_sort | Chenyang Wang |
| collection | DOAJ |
| description | Titanium alloys and nickel-based alloys have their own unique properties, and the bimetallic structure composed of the two alloys can be widely used in the aerospace field. However, the bimetallic structure which is fabricated by directly joining titanium alloys and nickel-based alloys via traditional methods is more sensitive to cracks due to the formation of intermetallic compounds. In this work based on laser additive manufacturing (LAM) technology, the TC4/IN718 bimetallic structure without metallurgical defects (such as cracks) was successfully fabricated via a Ta/Cu multi-interlayer. The test results indicated that the Ta/Cu multi-interlayer could effectively avoid the generation of Ti–Ni and Ti–Cu intermetallic compounds between TC4 and IN718. A good metallurgical combination was formed in each interface from TC4 to IN718 without metallurgical defects. The phase evolution from the TC4 region to the IN718 region was as follows: α -Ti → α -Ti + β -Ta → β -Ta → β -Ta + γ -Cu → γ -Cu → γ -Cu + γ -Ni + laves → γ -Ni + laves. The ultimate tensile strength of the bimetallic structure at room temperature was 369.32 MPa. |
| first_indexed | 2024-03-12T15:41:58Z |
| format | Article |
| id | doaj.art-3af65151f2fa4467b43819feac013c1d |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:41:58Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-3af65151f2fa4467b43819feac013c1d2023-08-09T15:55:18ZengIOP PublishingMaterials Research Express2053-15912020-01-0171212650610.1088/2053-1591/abce21Laser additive manufacturing of bimetallic structure from TC4 to IN718 via Ta/Cu multi-interlayerChenyang Wang0Chun Shang1Zhanqi Liu2Guojian Xu3https://orcid.org/0000-0002-9552-0564Xiangyu Liu4School of Material Science and Engineering, Shenyang University of Technology , Shenyang 110870, People’s Republic of ChinaSchool of Material Science and Engineering, Shenyang University of Technology , Shenyang 110870, People’s Republic of ChinaSchool of Material Science and Engineering, Shenyang University of Technology , Shenyang 110870, People’s Republic of ChinaSchool of Material Science and Engineering, Shenyang University of Technology , Shenyang 110870, People’s Republic of ChinaR & D department, Liaoning additive manufacturing industry technology Research Institute Co., Ltd., Shenyang 110206, People’s Republic of ChinaTitanium alloys and nickel-based alloys have their own unique properties, and the bimetallic structure composed of the two alloys can be widely used in the aerospace field. However, the bimetallic structure which is fabricated by directly joining titanium alloys and nickel-based alloys via traditional methods is more sensitive to cracks due to the formation of intermetallic compounds. In this work based on laser additive manufacturing (LAM) technology, the TC4/IN718 bimetallic structure without metallurgical defects (such as cracks) was successfully fabricated via a Ta/Cu multi-interlayer. The test results indicated that the Ta/Cu multi-interlayer could effectively avoid the generation of Ti–Ni and Ti–Cu intermetallic compounds between TC4 and IN718. A good metallurgical combination was formed in each interface from TC4 to IN718 without metallurgical defects. The phase evolution from the TC4 region to the IN718 region was as follows: α -Ti → α -Ti + β -Ta → β -Ta → β -Ta + γ -Cu → γ -Cu → γ -Cu + γ -Ni + laves → γ -Ni + laves. The ultimate tensile strength of the bimetallic structure at room temperature was 369.32 MPa.https://doi.org/10.1088/2053-1591/abce21laser additive manufacturingTC4/IN718 bimetallic structuremicrostructuretensile strength |
| spellingShingle | Chenyang Wang Chun Shang Zhanqi Liu Guojian Xu Xiangyu Liu Laser additive manufacturing of bimetallic structure from TC4 to IN718 via Ta/Cu multi-interlayer Materials Research Express laser additive manufacturing TC4/IN718 bimetallic structure microstructure tensile strength |
| title | Laser additive manufacturing of bimetallic structure from TC4 to IN718 via Ta/Cu multi-interlayer |
| title_full | Laser additive manufacturing of bimetallic structure from TC4 to IN718 via Ta/Cu multi-interlayer |
| title_fullStr | Laser additive manufacturing of bimetallic structure from TC4 to IN718 via Ta/Cu multi-interlayer |
| title_full_unstemmed | Laser additive manufacturing of bimetallic structure from TC4 to IN718 via Ta/Cu multi-interlayer |
| title_short | Laser additive manufacturing of bimetallic structure from TC4 to IN718 via Ta/Cu multi-interlayer |
| title_sort | laser additive manufacturing of bimetallic structure from tc4 to in718 via ta cu multi interlayer |
| topic | laser additive manufacturing TC4/IN718 bimetallic structure microstructure tensile strength |
| url | https://doi.org/10.1088/2053-1591/abce21 |
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