화학공학소재연구정보센터
학회 한국재료학회
학술대회 2020년 가을 (11/18 ~ 11/20, 휘닉스 제주 섭지코지)
권호 26권 1호
발표분야 D. 구조 재료 분과
제목 공형압연으로 제조된 Al6061/Cu와 Al6063/Cu 클래드에서 열처리 공정별 기계적 미세적 변화 연구
초록 Al6061/Cu and Al6063/Cu cladding materials have been produced by the caliber-rolling process at 298 K. The prepared specimen was post-annealed at a temperature of 773 K for various time durations, and the effects of annealing conditions have been investigated. Vickers hardness of Al6061, Al6063 and Cu decreases as annealing time decreases; however, that of the interface between Al alloys and Cu increases with an annealing time of 1 h, and then decreases as annealing time increases further. The growth of a diffusion layer in Al6063/Cu is larger than that in Al6061/Cu, because the activation energy in the Al6063/Cu is lower than that in Al6061/Cu during the annealing process. Cracking of the diffusion layer occurs by annealing for extended periods of time in both materials, which contributes to the decrease in hardness.
저자 이종범, 정하국
소속 한국생산기술(연)
키워드 클래드; 공형압연; 계면반응; 금속간화합물
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