Effect of post-deposition heat treatment on laser-TIG hybrid additive manufactured Al-Cu alloy
After solution + artificial aging treatment (T6 heat treatment) of 2219 aluminum alloy fabricated by laser-tungsten inert gas (TIG) hybrid method, more interestingly, we found that both the strength and elongation were improved. The strengthening mechanism has been analysed in details. Results showe...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2020-10-01
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| Series: | Virtual and Physical Prototyping |
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| Online Access: | http://dx.doi.org/10.1080/17452759.2020.1818021 |
| _version_ | 1797678626954543104 |
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| author | Dehua Liu Dongjiang Wu Guangyi Ma Chongliang Zhong Fangyong Niu Andres Gasser Johannes Henrich Schleifenbaum Guijun Bi |
| author_facet | Dehua Liu Dongjiang Wu Guangyi Ma Chongliang Zhong Fangyong Niu Andres Gasser Johannes Henrich Schleifenbaum Guijun Bi |
| author_sort | Dehua Liu |
| collection | DOAJ |
| description | After solution + artificial aging treatment (T6 heat treatment) of 2219 aluminum alloy fabricated by laser-tungsten inert gas (TIG) hybrid method, more interestingly, we found that both the strength and elongation were improved. The strengthening mechanism has been analysed in details. Results showed that each layer was divided into the arc zone (AZ) and laser zone (LZ) before and after heat treatment. After T6 heat treatment, the columnar crystal grain morphologies remained the same as the as-deposited condition, while the microstructure presented a strong {001} texture along the building direction. Moreover, the high density of the needle-shaped θ″ phases were uniformly precipitated after artificial aging. Distinct grain morphology, increased the mass fraction of Cu in the Al matrix, and nano-precipitates in the AZ and LZ improved the tensile properties, which exhibited a yield strength of 242.1 ± 19.6 MPa, an ultimate tensile strength of 407.1 ± 31.1 MPa, respectively. |
| first_indexed | 2024-03-11T23:02:40Z |
| format | Article |
| id | doaj.art-78f497b58c144e59a3f2b23785c74428 |
| institution | Directory Open Access Journal |
| issn | 1745-2759 1745-2767 |
| language | English |
| last_indexed | 2024-03-11T23:02:40Z |
| publishDate | 2020-10-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Virtual and Physical Prototyping |
| spelling | doaj.art-78f497b58c144e59a3f2b23785c744282023-09-21T14:38:02ZengTaylor & Francis GroupVirtual and Physical Prototyping1745-27591745-27672020-10-0115444545910.1080/17452759.2020.18180211818021Effect of post-deposition heat treatment on laser-TIG hybrid additive manufactured Al-Cu alloyDehua Liu0Dongjiang Wu1Guangyi Ma2Chongliang Zhong3Fangyong Niu4Andres Gasser5Johannes Henrich Schleifenbaum6Guijun Bi7Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of TechnologyKey Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of TechnologyKey Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of TechnologyFraunhofer ILT – Institute for Laser TechnologyKey Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of TechnologyFraunhofer ILT – Institute for Laser TechnologyFraunhofer ILT – Institute for Laser TechnologySingapore Institute of Manufacturing TechnologyAfter solution + artificial aging treatment (T6 heat treatment) of 2219 aluminum alloy fabricated by laser-tungsten inert gas (TIG) hybrid method, more interestingly, we found that both the strength and elongation were improved. The strengthening mechanism has been analysed in details. Results showed that each layer was divided into the arc zone (AZ) and laser zone (LZ) before and after heat treatment. After T6 heat treatment, the columnar crystal grain morphologies remained the same as the as-deposited condition, while the microstructure presented a strong {001} texture along the building direction. Moreover, the high density of the needle-shaped θ″ phases were uniformly precipitated after artificial aging. Distinct grain morphology, increased the mass fraction of Cu in the Al matrix, and nano-precipitates in the AZ and LZ improved the tensile properties, which exhibited a yield strength of 242.1 ± 19.6 MPa, an ultimate tensile strength of 407.1 ± 31.1 MPa, respectively.http://dx.doi.org/10.1080/17452759.2020.1818021laser-tig hybrid additive manufacturingheat treatmenthigh strength aluminum alloymicrostructure evolutionstrengthening mechanism |
| spellingShingle | Dehua Liu Dongjiang Wu Guangyi Ma Chongliang Zhong Fangyong Niu Andres Gasser Johannes Henrich Schleifenbaum Guijun Bi Effect of post-deposition heat treatment on laser-TIG hybrid additive manufactured Al-Cu alloy Virtual and Physical Prototyping laser-tig hybrid additive manufacturing heat treatment high strength aluminum alloy microstructure evolution strengthening mechanism |
| title | Effect of post-deposition heat treatment on laser-TIG hybrid additive manufactured Al-Cu alloy |
| title_full | Effect of post-deposition heat treatment on laser-TIG hybrid additive manufactured Al-Cu alloy |
| title_fullStr | Effect of post-deposition heat treatment on laser-TIG hybrid additive manufactured Al-Cu alloy |
| title_full_unstemmed | Effect of post-deposition heat treatment on laser-TIG hybrid additive manufactured Al-Cu alloy |
| title_short | Effect of post-deposition heat treatment on laser-TIG hybrid additive manufactured Al-Cu alloy |
| title_sort | effect of post deposition heat treatment on laser tig hybrid additive manufactured al cu alloy |
| topic | laser-tig hybrid additive manufacturing heat treatment high strength aluminum alloy microstructure evolution strengthening mechanism |
| url | http://dx.doi.org/10.1080/17452759.2020.1818021 |
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