Surface morphology refinement and Laves phase control of plasma arc additively manufactured Inconel 718 via an alternating magnetic field
Improving formability and mechanical properties have always been one of the challenges in additively manufactured Nickel-based superalloys. In this work, the effect of a coaxially coupled alternating magnetic field (AMF) on surface morphology and mechanical properties of plasma arc-based additively...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127522007833 |
| _version_ | 1797991327204376576 |
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| author | Yi Zheng Liang Cao Jie Wang Jingren Xie Jieshi Chen Daqing Wang Shuai Wang Jijin Xu Hao Lu |
| author_facet | Yi Zheng Liang Cao Jie Wang Jingren Xie Jieshi Chen Daqing Wang Shuai Wang Jijin Xu Hao Lu |
| author_sort | Yi Zheng |
| collection | DOAJ |
| description | Improving formability and mechanical properties have always been one of the challenges in additively manufactured Nickel-based superalloys. In this work, the effect of a coaxially coupled alternating magnetic field (AMF) on surface morphology and mechanical properties of plasma arc-based additively manufactured Inconel 718 deposit were investigated. Results exhibit that the Lorentz force induced by AMF strongly alters the flow behavior of the plasma jet and the molten pool, suppressing the tendency of the liquid metal in the molten pool to flow down on the two sides face of the deposit, which in turn remarkably improved the surface accuracy of the thin-walled deposit. Furthermore, the electromagnetic stirring induced by AMF can effectively enhance the convection between the dendrites, which could not only contribute to the formation of finer dendrites but also alleviate the enrichment of the elements (i.e., Nb and Mo) at the solid–liquid interface and inhibits the precipitation of Laves phases. The smallest primary dendritic arm spacing (∼13 μm) and lowest Laves phases area fraction (3.12 %) were witnessed in the bottom region of the AMF-assisted deposit. The mechanical test confirmed that the deposit's microhardness and tensile properties were moderately improved compared with the counterpart without AMF. |
| first_indexed | 2024-04-11T08:50:23Z |
| format | Article |
| id | doaj.art-0ed561420b7f4139b5689950e638ccc3 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-04-11T08:50:23Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-0ed561420b7f4139b5689950e638ccc32022-12-22T04:33:35ZengElsevierMaterials & Design0264-12752022-11-01223111161Surface morphology refinement and Laves phase control of plasma arc additively manufactured Inconel 718 via an alternating magnetic fieldYi Zheng0Liang Cao1Jie Wang2Jingren Xie3Jieshi Chen4Daqing Wang5Shuai Wang6Jijin Xu7Hao Lu8School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201602, ChinaSchool of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Corresponding authors.School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Corresponding authors.Improving formability and mechanical properties have always been one of the challenges in additively manufactured Nickel-based superalloys. In this work, the effect of a coaxially coupled alternating magnetic field (AMF) on surface morphology and mechanical properties of plasma arc-based additively manufactured Inconel 718 deposit were investigated. Results exhibit that the Lorentz force induced by AMF strongly alters the flow behavior of the plasma jet and the molten pool, suppressing the tendency of the liquid metal in the molten pool to flow down on the two sides face of the deposit, which in turn remarkably improved the surface accuracy of the thin-walled deposit. Furthermore, the electromagnetic stirring induced by AMF can effectively enhance the convection between the dendrites, which could not only contribute to the formation of finer dendrites but also alleviate the enrichment of the elements (i.e., Nb and Mo) at the solid–liquid interface and inhibits the precipitation of Laves phases. The smallest primary dendritic arm spacing (∼13 μm) and lowest Laves phases area fraction (3.12 %) were witnessed in the bottom region of the AMF-assisted deposit. The mechanical test confirmed that the deposit's microhardness and tensile properties were moderately improved compared with the counterpart without AMF.http://www.sciencedirect.com/science/article/pii/S0264127522007833Plasma arcAdditive manufacturingInconel 718Alternating magnetic fieldLaves phase |
| spellingShingle | Yi Zheng Liang Cao Jie Wang Jingren Xie Jieshi Chen Daqing Wang Shuai Wang Jijin Xu Hao Lu Surface morphology refinement and Laves phase control of plasma arc additively manufactured Inconel 718 via an alternating magnetic field Materials & Design Plasma arc Additive manufacturing Inconel 718 Alternating magnetic field Laves phase |
| title | Surface morphology refinement and Laves phase control of plasma arc additively manufactured Inconel 718 via an alternating magnetic field |
| title_full | Surface morphology refinement and Laves phase control of plasma arc additively manufactured Inconel 718 via an alternating magnetic field |
| title_fullStr | Surface morphology refinement and Laves phase control of plasma arc additively manufactured Inconel 718 via an alternating magnetic field |
| title_full_unstemmed | Surface morphology refinement and Laves phase control of plasma arc additively manufactured Inconel 718 via an alternating magnetic field |
| title_short | Surface morphology refinement and Laves phase control of plasma arc additively manufactured Inconel 718 via an alternating magnetic field |
| title_sort | surface morphology refinement and laves phase control of plasma arc additively manufactured inconel 718 via an alternating magnetic field |
| topic | Plasma arc Additive manufacturing Inconel 718 Alternating magnetic field Laves phase |
| url | http://www.sciencedirect.com/science/article/pii/S0264127522007833 |
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