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논문 기본 정보

자료유형
학술저널
저자정보
Xin Zhang (Northeastern University) Zong‑an Luo (Northeastern University) Jin‑song Yang (Northeastern University) Ming‑kun Wang (Northeastern University) Huan Yu (Northeastern University) Zhao‑song Liu (Northeastern University) Ying‑Ying Feng (Northeastern University) Guang‑ming Xie (Northeastern University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.30 No.2
발행연도
2024.2
수록면
469 - 482 (14page)
DOI
10.1007/s12540-023-01505-8

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초록· 키워드

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Interfacial bonding behavior of 7050 aluminum alloy clad plates during hot-roll cladding under different vacuum degreeswas investigated. The results demonstrated that the bonding effect of the interface was positively correlated with the vacuumdegree. Due to severe surface oxidation at 105Pa, the metal on both sides of the interface did not undergo metallurgicalbonding and mainly maintained physical contact, with an ultimate tensile strength (UTS) of only 209 MPa across the interface. At 102Pa, the large-scale migration of original interfacial grain boundary was still inhibited and continuous dynamicrecrystallization occurred mainly at the interface with bulging only locally, which directly led to brittle fracture. At 10–1 Pa,significant discontinuous dynamic recrystallization (DDRX) occurred at the interface, resulting in the complete eliminationof the original interface. And UTS across the interface was 338 MPa, reaching the level of the matrix. Therefore, interfacialmetallurgical bonding could be achieved by reducing the oxidation of interface and further inducing DDRX during hot-rollcladding.

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