Microstructure and corrosion resistance of CMT+P wire arc additive manufacturing 2024 aluminum alloy
As-deposited parts of 2024 aluminum alloy are fabricated by cold metal transfer and pulse （CMT+P） hybrid wire arc additive manufacturing. The distributions of pore defects， grain morphology， and secondary phase precipitation of CMT+P wire arc additive manufacturing 2024 aluminum alloy， and the influ...
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2025-03-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | https://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2023.000743 |
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| author | YAN Junpei LU Xuecheng ZHANG Zhiqiang ZHUO Shuai LI Hanxi |
| author_facet | YAN Junpei LU Xuecheng ZHANG Zhiqiang ZHUO Shuai LI Hanxi |
| author_sort | YAN Junpei |
| collection | DOAJ |
| description | As-deposited parts of 2024 aluminum alloy are fabricated by cold metal transfer and pulse （CMT+P） hybrid wire arc additive manufacturing. The distributions of pore defects， grain morphology， and secondary phase precipitation of CMT+P wire arc additive manufacturing 2024 aluminum alloy， and the influence of different process parameters on pore defects， grain morphology and secondary phase precipitation， and corrosion resistance are investigated. The results show that the pores of the as-deposited parts of 2024 aluminum alloy are mainly distributed near the fusion line. In the same heat input， the larger wire feed speed and travel speed result in higher porosity. In a deposition layer， the upper part is the equiaxed grain without preferred orientation， and the lower part is the columnar grain with preferred orientation. In the same heat input， the texture is weakened and the percentage of equiaxed grains is increased due to the fine grain region in the higher wire feed speed and travel speed. The precipitated secondary phases are mainly Al2CuMg， Al2Cu， and rich-Fe， Mn phases. The secondary phases distribute continuously along the grain boundaries. In the early stage of corrosion， the main factor affecting the corrosion resistance of as-deposited parts is the precipitation amount of Al2CuMg. The better local corrosion resistance is mainly caused by lower Al2CuMg phase fraction in lower wire feed speed and travel speed. |
| format | Article |
| id | doaj-art-d2a9f7dfcf20443a949002355b671cfc |
| institution | DOAJ |
| issn | 1001-4381 |
| language | zho |
| publishDate | 2025-03-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj-art-d2a9f7dfcf20443a949002355b671cfc2025-08-20T03:06:09ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43812025-03-0153310511610.11868/j.issn.1001-4381.2023.0007431001-4381（2025）03-0105-12Microstructure and corrosion resistance of CMT+P wire arc additive manufacturing 2024 aluminum alloyYAN Junpei0LU Xuecheng1ZHANG Zhiqiang2ZHUO Shuai3LI Hanxi4College of Aviation Engineering，Civil Aviation University of China，Tianjin 300300，ChinaCollege of Aviation Engineering，Civil Aviation University of China，Tianjin 300300，ChinaCollege of Aviation Engineering，Civil Aviation University of China，Tianjin 300300，ChinaCollege of Aviation Engineering，Civil Aviation University of China，Tianjin 300300，ChinaCollege of Aviation Engineering，Civil Aviation University of China，Tianjin 300300，ChinaAs-deposited parts of 2024 aluminum alloy are fabricated by cold metal transfer and pulse （CMT+P） hybrid wire arc additive manufacturing. The distributions of pore defects， grain morphology， and secondary phase precipitation of CMT+P wire arc additive manufacturing 2024 aluminum alloy， and the influence of different process parameters on pore defects， grain morphology and secondary phase precipitation， and corrosion resistance are investigated. The results show that the pores of the as-deposited parts of 2024 aluminum alloy are mainly distributed near the fusion line. In the same heat input， the larger wire feed speed and travel speed result in higher porosity. In a deposition layer， the upper part is the equiaxed grain without preferred orientation， and the lower part is the columnar grain with preferred orientation. In the same heat input， the texture is weakened and the percentage of equiaxed grains is increased due to the fine grain region in the higher wire feed speed and travel speed. The precipitated secondary phases are mainly Al2CuMg， Al2Cu， and rich-Fe， Mn phases. The secondary phases distribute continuously along the grain boundaries. In the early stage of corrosion， the main factor affecting the corrosion resistance of as-deposited parts is the precipitation amount of Al2CuMg. The better local corrosion resistance is mainly caused by lower Al2CuMg phase fraction in lower wire feed speed and travel speed.https://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2023.000743high strength aluminum alloywire arc additive manufacturingporemicrostructurecorrosion resistance |
| spellingShingle | YAN Junpei LU Xuecheng ZHANG Zhiqiang ZHUO Shuai LI Hanxi Microstructure and corrosion resistance of CMT+P wire arc additive manufacturing 2024 aluminum alloy Cailiao gongcheng high strength aluminum alloy wire arc additive manufacturing pore microstructure corrosion resistance |
| title | Microstructure and corrosion resistance of CMT+P wire arc additive manufacturing 2024 aluminum alloy |
| title_full | Microstructure and corrosion resistance of CMT+P wire arc additive manufacturing 2024 aluminum alloy |
| title_fullStr | Microstructure and corrosion resistance of CMT+P wire arc additive manufacturing 2024 aluminum alloy |
| title_full_unstemmed | Microstructure and corrosion resistance of CMT+P wire arc additive manufacturing 2024 aluminum alloy |
| title_short | Microstructure and corrosion resistance of CMT+P wire arc additive manufacturing 2024 aluminum alloy |
| title_sort | microstructure and corrosion resistance of cmt p wire arc additive manufacturing 2024 aluminum alloy |
| topic | high strength aluminum alloy wire arc additive manufacturing pore microstructure corrosion resistance |
| url | https://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2023.000743 |
| work_keys_str_mv | AT yanjunpei microstructureandcorrosionresistanceofcmtpwirearcadditivemanufacturing2024aluminumalloy AT luxuecheng microstructureandcorrosionresistanceofcmtpwirearcadditivemanufacturing2024aluminumalloy AT zhangzhiqiang microstructureandcorrosionresistanceofcmtpwirearcadditivemanufacturing2024aluminumalloy AT zhuoshuai microstructureandcorrosionresistanceofcmtpwirearcadditivemanufacturing2024aluminumalloy AT lihanxi microstructureandcorrosionresistanceofcmtpwirearcadditivemanufacturing2024aluminumalloy |