Study on Microstructural and Mechanical Properties of an Al–Cu–Sn Alloy Wall Deposited by Double-Wire Arc Additive Manufacturing Process
In this present study, single-wire and double-wire Al−Cu−Sn alloy walls were fabricated by an arc additive manufacturing process. The surface morphology, elemental composition, and microstructure were investigated by scanning electron microscopy (SEM), energy dispersive spectrosc...
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MDPI AG
2019-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/1/73 |
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| author | Shuai Wang Huimin Gu Wei Wang Chengde Li Lingling Ren Zhenbiao Wang Yuchun Zhai Peihua Ma |
| author_facet | Shuai Wang Huimin Gu Wei Wang Chengde Li Lingling Ren Zhenbiao Wang Yuchun Zhai Peihua Ma |
| author_sort | Shuai Wang |
| collection | DOAJ |
| description | In this present study, single-wire and double-wire Al−Cu−Sn alloy walls were fabricated by an arc additive manufacturing process. The surface morphology, elemental composition, and microstructure were investigated by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and transmission electron microscopy (TEM) techniques. The mechanical properties of both the single-wire and double-wire walls were studied by mechanical property testing. The results showed that the heat input of the double-wire wall was lower than that of the single-wire wall at the same wire feeding speed. The surface microstructure of the double-wire wall showed a more uniform surface than the single-wire wall. The grains of the double-wire wall were found to be isometric crystals in the as-deposited state. The <i>θ</i> phase of the double-wire wall was dispersed with a smaller grain size in the grain boundary. After T6 heat treatment, the <i>θ</i> phase of the double-wire wall was completely dissolved into the aluminum matrix, and a large amount of θ<b><sup>’</sup></b> enhanced phases were precipitated with a phase spacing of about 15 nm. The mechanical properties of the double-wire wall were shown to have significantly improved performance, which further increased to 490 MPa, 420 MPa, and 12%, respectively. The transverse and longitudinal mechanical properties of the double-wire wall were consistent, and the fracture mode of both was ductile fracture. |
| first_indexed | 2024-04-12T08:01:20Z |
| format | Article |
| id | doaj.art-afc49524c8b14696920745543aad325f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-12T08:01:20Z |
| publishDate | 2019-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-afc49524c8b14696920745543aad325f2022-12-22T03:41:18ZengMDPI AGMaterials1996-19442019-12-011317310.3390/ma13010073ma13010073Study on Microstructural and Mechanical Properties of an Al–Cu–Sn Alloy Wall Deposited by Double-Wire Arc Additive Manufacturing ProcessShuai Wang0Huimin Gu1Wei Wang2Chengde Li3Lingling Ren4Zhenbiao Wang5Yuchun Zhai6Peihua Ma7College of Metallurgy, Northeastern University, Shenyang 110000, ChinaCollege of Metallurgy, Northeastern University, Shenyang 110000, ChinaInner Mongolia Metal Material Research Institute, Baotou 014000, ChinaCollege of Metallurgy, Northeastern University, Shenyang 110000, ChinaCollege of Metallurgy, Northeastern University, Shenyang 110000, ChinaFushun Donggong Metallurgy & Materials Technology Co., Ltd., Fushun 113000, ChinaCollege of Metallurgy, Northeastern University, Shenyang 110000, ChinaCollege of Metallurgy, Northeastern University, Shenyang 110000, ChinaIn this present study, single-wire and double-wire Al−Cu−Sn alloy walls were fabricated by an arc additive manufacturing process. The surface morphology, elemental composition, and microstructure were investigated by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and transmission electron microscopy (TEM) techniques. The mechanical properties of both the single-wire and double-wire walls were studied by mechanical property testing. The results showed that the heat input of the double-wire wall was lower than that of the single-wire wall at the same wire feeding speed. The surface microstructure of the double-wire wall showed a more uniform surface than the single-wire wall. The grains of the double-wire wall were found to be isometric crystals in the as-deposited state. The <i>θ</i> phase of the double-wire wall was dispersed with a smaller grain size in the grain boundary. After T6 heat treatment, the <i>θ</i> phase of the double-wire wall was completely dissolved into the aluminum matrix, and a large amount of θ<b><sup>’</sup></b> enhanced phases were precipitated with a phase spacing of about 15 nm. The mechanical properties of the double-wire wall were shown to have significantly improved performance, which further increased to 490 MPa, 420 MPa, and 12%, respectively. The transverse and longitudinal mechanical properties of the double-wire wall were consistent, and the fracture mode of both was ductile fracture.https://www.mdpi.com/1996-1944/13/1/73al–cu–sn alloydouble-wire + arc additive manufacturingmicrostructuremechanical property |
| spellingShingle | Shuai Wang Huimin Gu Wei Wang Chengde Li Lingling Ren Zhenbiao Wang Yuchun Zhai Peihua Ma Study on Microstructural and Mechanical Properties of an Al–Cu–Sn Alloy Wall Deposited by Double-Wire Arc Additive Manufacturing Process Materials al–cu–sn alloy double-wire + arc additive manufacturing microstructure mechanical property |
| title | Study on Microstructural and Mechanical Properties of an Al–Cu–Sn Alloy Wall Deposited by Double-Wire Arc Additive Manufacturing Process |
| title_full | Study on Microstructural and Mechanical Properties of an Al–Cu–Sn Alloy Wall Deposited by Double-Wire Arc Additive Manufacturing Process |
| title_fullStr | Study on Microstructural and Mechanical Properties of an Al–Cu–Sn Alloy Wall Deposited by Double-Wire Arc Additive Manufacturing Process |
| title_full_unstemmed | Study on Microstructural and Mechanical Properties of an Al–Cu–Sn Alloy Wall Deposited by Double-Wire Arc Additive Manufacturing Process |
| title_short | Study on Microstructural and Mechanical Properties of an Al–Cu–Sn Alloy Wall Deposited by Double-Wire Arc Additive Manufacturing Process |
| title_sort | study on microstructural and mechanical properties of an al cu sn alloy wall deposited by double wire arc additive manufacturing process |
| topic | al–cu–sn alloy double-wire + arc additive manufacturing microstructure mechanical property |
| url | https://www.mdpi.com/1996-1944/13/1/73 |
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