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초록
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. © 2025 The Authors
키워드
- 제목
- Transforming Fe-Cu alloys with unprecedented BCC Cu precipitates toward dual mechanical functionalities
- 저자
- Kim, Jeong Rae; Kang, Hyun-Su; Ko, Tae-Wan; Hwang, Young Jae; Kim, Gun Hee; Choi, Seon-Jin; Lee, Kwangchoon; Han, Hyuk-Su; Kim, Hyung Giun; Lee, Taeg Woo
- 발행일
- 2025-06
- 유형
- Article
- 권
- 254