Effect of Cooling Rate on the Microstructure and Mechanical Properties of Al-33 wt.% Cu Alloy

• Autorzy: Lee Yeon-Joo , Kwon Do-Hun , Cha Eun-Ji , Song Yong-Wook , Choi Hyun Joo , Kim Hwi-Jun

Identyfikatory

DOI

10.24425/amm.2023.141470

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

laser melting; cooling rate; lamellar spacing; hardness; Al-33wt.%Cu alloy

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2023
• Tom: Vol. 68, iss. 1
• Strony: 43--46
• Opis fizyczny: Bibliogr. 15 poz., fot., rys., tab., wzory

Twórcy

autor

Lee Yeon-Joo

• Korea Institute of Industrial Technology, Research Institute of Advanced Manufacturing & Materials Technology, 156, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea 21999
• Kookmin University Dept. of Advanced Materials Engineering, Seoul, KS013, Republic of Korea

• https://orcid.org/0000-0001-9204-0904

autor

Kwon Do-Hun

• Korea Institute of Industrial Technology, Research Institute of Advanced Manufacturing & Materials Technology, 156, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea 21999

• https://orcid.org/0000-0003-0738-2307

autor

Cha Eun-Ji

• Korea Institute of Industrial Technology, Research Institute of Advanced Manufacturing & Materials Technology, 156, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea 21999

• https://orcid.org/0000-0003-3263-8116

autor

Song Yong-Wook

• Kookmin University Dept. of Advanced Materials Engineering, Seoul, KS013, Republic of Korea

• https://orcid.org/0000-0002-9171-3350

autor

Choi Hyun Joo

• Kookmin University Dept. of Advanced Materials Engineering, Seoul, KS013, Republic of Korea

• https://orcid.org/0000-0003-1969-6901

autor

Kim Hwi-Jun

• Korea Institute of Industrial Technology, Research Institute of Advanced Manufacturing & Materials Technology, 156, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea 21999

• https://orcid.org/0000-0002-6157-955X

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).