Effect of Cooling Rate on the Microstructure and Mechanical Properties of Al-33 wt.% Cu Alloy
Directed energy deposition (DED) is an additive manufacturing process wherein an energy source is focused on a substrate on which a feedstock material is simultaneously delivered, thereby forming a small melt pool. Melting, solidification, and subsequent cooling occur at high rates with considerable...
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| Language: | English |
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Polish Academy of Sciences
2023-03-01
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| Series: | Archives of Metallurgy and Materials |
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| Online Access: | https://journals.pan.pl/Content/126223/PDF/AMM-2023-1-06-Hwi-Jun%20Kim.pdf |
| _version_ | 1797869194382934016 |
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| author | Yeon-Joo Lee Do-Hun Kwon Eun-Ji Cha Yong-Wook Song Hyun-Joo Choi Hwi-Jun Kim |
| author_facet | Yeon-Joo Lee Do-Hun Kwon Eun-Ji Cha Yong-Wook Song Hyun-Joo Choi Hwi-Jun Kim |
| author_sort | Yeon-Joo Lee |
| collection | DOAJ |
| description | Directed energy deposition (DED) is an additive manufacturing process wherein an energy source is focused on a substrate on which a feedstock material is simultaneously delivered, thereby forming a small melt pool. Melting, solidification, and subsequent cooling occur at high rates with considerable thermal gradients compared with traditional metallurgical processes. Hence, it is important to examine the effects of cooling rates on the microstructures and properties of the additive manufactured materials. In this study, after performing DED with various energy densities, we investigated the changes in the microstructures and Vickers hardness of cast Al-33 wt.% Cu alloy, which is widely used to estimate the cooling rate during processing by measuring the lamellar spacing of the microstructure after solidification. The effects of the energy density on the cooling rate and resultant mechanical properties are discussed, which suggests a simple way to estimate the cooling rate indirectly. This study corresponds to the basic stage of the current study, and will continue to apply DED in the future. |
| first_indexed | 2024-04-10T00:08:48Z |
| format | Article |
| id | doaj.art-5f9c532f086f44c6ab51d83edbfdbfc3 |
| institution | Directory Open Access Journal |
| issn | 2300-1909 |
| language | English |
| last_indexed | 2024-04-10T00:08:48Z |
| publishDate | 2023-03-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Metallurgy and Materials |
| spelling | doaj.art-5f9c532f086f44c6ab51d83edbfdbfc32023-03-16T15:02:45ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092023-03-01vol. 68No 14346https://doi.org/10.24425/amm.2023.141470Effect of Cooling Rate on the Microstructure and Mechanical Properties of Al-33 wt.% Cu AlloyYeon-Joo Lee0https://orcid.org/0000-0001-9204-0904Do-Hun Kwon1https://orcid.org/0000-0003-0738-2307Eun-Ji Cha2https://orcid.org/0000-0003-3263-8116Yong-Wook Song3https://orcid.org/0000-0002-9171-3350Hyun-Joo Choi4https://orcid.org/0000-0003-1969-6901Hwi-Jun Kim5https://orcid.org/0000-0002-6157-955XKorea Institute of Industrial Technology, Research Institute of Advanced Manufacturing & Materials Technology, 156, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea 21999Korea Institute of Industrial Technology, Research Institute of Advanced Manufacturing & Materials Technology, 156, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea 21999Korea Institute of Industrial Technology, Research Institute of Advanced Manufacturing & Materials Technology, 156, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea 21999Kookmin University Dept. of Advanced Materials Engineering, Seoul, KS013, Republic of KoreaKookmin University Dept. of Advanced Materials Engineering, Seoul, KS013, Republic of KoreaKorea Institute of Industrial Technology, Research Institute of Advanced Manufacturing & Materials Technology, 156, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea 21999Directed energy deposition (DED) is an additive manufacturing process wherein an energy source is focused on a substrate on which a feedstock material is simultaneously delivered, thereby forming a small melt pool. Melting, solidification, and subsequent cooling occur at high rates with considerable thermal gradients compared with traditional metallurgical processes. Hence, it is important to examine the effects of cooling rates on the microstructures and properties of the additive manufactured materials. In this study, after performing DED with various energy densities, we investigated the changes in the microstructures and Vickers hardness of cast Al-33 wt.% Cu alloy, which is widely used to estimate the cooling rate during processing by measuring the lamellar spacing of the microstructure after solidification. The effects of the energy density on the cooling rate and resultant mechanical properties are discussed, which suggests a simple way to estimate the cooling rate indirectly. This study corresponds to the basic stage of the current study, and will continue to apply DED in the future.https://journals.pan.pl/Content/126223/PDF/AMM-2023-1-06-Hwi-Jun%20Kim.pdflaser meltingcooling ratelamellar spacinghardnessal-33 wt.% cu alloy |
| spellingShingle | Yeon-Joo Lee Do-Hun Kwon Eun-Ji Cha Yong-Wook Song Hyun-Joo Choi Hwi-Jun Kim Effect of Cooling Rate on the Microstructure and Mechanical Properties of Al-33 wt.% Cu Alloy Archives of Metallurgy and Materials laser melting cooling rate lamellar spacing hardness al-33 wt.% cu alloy |
| title | Effect of Cooling Rate on the Microstructure and Mechanical Properties of Al-33 wt.% Cu Alloy |
| title_full | Effect of Cooling Rate on the Microstructure and Mechanical Properties of Al-33 wt.% Cu Alloy |
| title_fullStr | Effect of Cooling Rate on the Microstructure and Mechanical Properties of Al-33 wt.% Cu Alloy |
| title_full_unstemmed | Effect of Cooling Rate on the Microstructure and Mechanical Properties of Al-33 wt.% Cu Alloy |
| title_short | Effect of Cooling Rate on the Microstructure and Mechanical Properties of Al-33 wt.% Cu Alloy |
| title_sort | effect of cooling rate on the microstructure and mechanical properties of al 33 wt cu alloy |
| topic | laser melting cooling rate lamellar spacing hardness al-33 wt.% cu alloy |
| url | https://journals.pan.pl/Content/126223/PDF/AMM-2023-1-06-Hwi-Jun%20Kim.pdf |
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