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https://www.riss.kr/link?id=A3047860
이인우 ; 박현호 ; 김명호 ( In Woo Lee ; Hyun Ho Park ; Myung Ho Kim )
1996
-
500
KCI등재
학술저널
326-334(9쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Twin roll quenched Al-Be ribbons were vacuum hot-pressed at 450℃ under 100㎫ and hot-extruded with reduction in area of 25:1 at 450℃. The extruded Al-Be ribbons consisted of refined Al grains and homogeneously dispersed fine Be particles, and exh...
Twin roll quenched Al-Be ribbons were vacuum hot-pressed at 450℃ under 100㎫ and hot-extruded with reduction in area of 25:1 at 450℃. The extruded Al-Be ribbons consisted of refined Al grains and homogeneously dispersed fine Be particles, and exhibited improved tensile properties with increasing of solidification rate and Be contents. Also in order to develop a light weight-high strength Al alloy, rapidly solidified Al-Mg-Be alloy system was studied. Rapidly solidified Al-Mg-Be alloy by twin roll quenching process was vacuum hot -pressed and subsequently hot-extruded. Compared with extruded Al-Mg ribbons, extruded Al-Mg-Be ribbons exhibited finer recrystallized grains and improved tensile properties, as subgrain boundaries of extruded Al-Mg-Be ribbons were pinned by fine Be particles. With increasing of solidification rate and Mg contents, extruded Al-Mg-Be ribbons exhibited very fine recrystallized grains and improved tensile properties. These tendencies could be due to promoted recrystallization by refined Be particles. T4 treatment for the extruded Al-13Mg-1Be ribbons was found to improve the elongation, possibly by the resolution of Al₃Mg₂at grain boundaries.
과공정 Al-Si 합금에서 초정 미세화 및 공정 Si 의 개량화에 관한 연구