Transforming Fe-Cu alloys with unprecedented BCC Cu precipitates toward dual mechanical functionalities
An Fe-10Cu alloy was fabricated without internal defects using a powder metallurgy-hot isostatic pressing (PM-HIP) method under high pressure conditions to determine the changes in its microstructure and physical properties according to the sintering temperature. In general, Cu precipitates in Fe-Cu...
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Elsevier
2025-06-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127525003831 |
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| author | Jeong Rae Kim Hyun-Su Kang Tae-Wan Ko Young Jae Hwang Gun Hee Kim Seon-Jin Choi Kwangchoon Lee Hyuk-Su Han Hyung Giun Kim Taeg Woo Lee |
| author_facet | Jeong Rae Kim Hyun-Su Kang Tae-Wan Ko Young Jae Hwang Gun Hee Kim Seon-Jin Choi Kwangchoon Lee Hyuk-Su Han Hyung Giun Kim Taeg Woo Lee |
| author_sort | Jeong Rae Kim |
| collection | DOAJ |
| description | An Fe-10Cu alloy was fabricated without internal defects using a powder metallurgy-hot isostatic pressing (PM-HIP) method under high pressure conditions to determine the changes in its microstructure and physical properties according to the sintering temperature. In general, Cu precipitates in Fe-Cu alloys have been observed in an FCC structure, and studies on BCC Cu precipitates smaller than 6 nm have only been theoretically reported. However, for the first time, we found that Cu precipitates with a BCC structure larger than 50 nm may occur in an Fe-Cu alloy. An Fe-Cu alloy containing BCC Cu precipitates in a fully coherent relationship with the α-Fe matrix was observed to have completely different brittle fracture mode, along with higher tensile strength and thermal conductivity compared to an Fe-Cu alloys containing FCC Cu precipitates. |
| format | Article |
| id | doaj-art-b1a2aa8b6cf340a1b8c43e36891043cb |
| institution | DOAJ |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-b1a2aa8b6cf340a1b8c43e36891043cb2025-08-20T03:10:51ZengElsevierMaterials & Design0264-12752025-06-0125411396310.1016/j.matdes.2025.113963Transforming Fe-Cu alloys with unprecedented BCC Cu precipitates toward dual mechanical functionalitiesJeong Rae Kim0Hyun-Su Kang1Tae-Wan Ko2Young Jae Hwang3Gun Hee Kim4Seon-Jin Choi5Kwangchoon Lee6Hyuk-Su Han7Hyung Giun Kim8Taeg Woo Lee9Functional Materials and Components Group, Korea Institute of Industrial Technology, Gangneung 25440, Republic of Korea; Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Republic of KoreaFunctional Materials and Components Group, Korea Institute of Industrial Technology, Gangneung 25440, Republic of KoreaFunctional Materials and Components Group, Korea Institute of Industrial Technology, Gangneung 25440, Republic of KoreaFunctional Materials and Components Group, Korea Institute of Industrial Technology, Gangneung 25440, Republic of KoreaFunctional Materials and Components Group, Korea Institute of Industrial Technology, Gangneung 25440, Republic of KoreaDivision of Materials Science and Engineering, Hanyang University, Seoul 04763, Republic of KoreaMTA Co., Ltd., Goesan 28023, Republic of KoreaDepartment of Energy Science, Sungkyunkwan University, Suwon 16419, Republic of Korea; Corresponding authors.Functional Materials and Components Group, Korea Institute of Industrial Technology, Gangneung 25440, Republic of Korea; Corresponding authors.Functional Materials and Components Group, Korea Institute of Industrial Technology, Gangneung 25440, Republic of Korea; Corresponding authors.An Fe-10Cu alloy was fabricated without internal defects using a powder metallurgy-hot isostatic pressing (PM-HIP) method under high pressure conditions to determine the changes in its microstructure and physical properties according to the sintering temperature. In general, Cu precipitates in Fe-Cu alloys have been observed in an FCC structure, and studies on BCC Cu precipitates smaller than 6 nm have only been theoretically reported. However, for the first time, we found that Cu precipitates with a BCC structure larger than 50 nm may occur in an Fe-Cu alloy. An Fe-Cu alloy containing BCC Cu precipitates in a fully coherent relationship with the α-Fe matrix was observed to have completely different brittle fracture mode, along with higher tensile strength and thermal conductivity compared to an Fe-Cu alloys containing FCC Cu precipitates.http://www.sciencedirect.com/science/article/pii/S0264127525003831Fe-10CuHot isostatic pressingBCC CuMechanical propertiesPrecipitation |
| spellingShingle | Jeong Rae Kim Hyun-Su Kang Tae-Wan Ko Young Jae Hwang Gun Hee Kim Seon-Jin Choi Kwangchoon Lee Hyuk-Su Han Hyung Giun Kim Taeg Woo Lee Transforming Fe-Cu alloys with unprecedented BCC Cu precipitates toward dual mechanical functionalities Materials & Design Fe-10Cu Hot isostatic pressing BCC Cu Mechanical properties Precipitation |
| title | Transforming Fe-Cu alloys with unprecedented BCC Cu precipitates toward dual mechanical functionalities |
| title_full | Transforming Fe-Cu alloys with unprecedented BCC Cu precipitates toward dual mechanical functionalities |
| title_fullStr | Transforming Fe-Cu alloys with unprecedented BCC Cu precipitates toward dual mechanical functionalities |
| title_full_unstemmed | Transforming Fe-Cu alloys with unprecedented BCC Cu precipitates toward dual mechanical functionalities |
| title_short | Transforming Fe-Cu alloys with unprecedented BCC Cu precipitates toward dual mechanical functionalities |
| title_sort | transforming fe cu alloys with unprecedented bcc cu precipitates toward dual mechanical functionalities |
| topic | Fe-10Cu Hot isostatic pressing BCC Cu Mechanical properties Precipitation |
| url | http://www.sciencedirect.com/science/article/pii/S0264127525003831 |
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