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      주조용 Al-Si-Mg (A356) 합금의 동일 시간 시효에 따른 석출변태 = Precipitatie Transformation during Isochronal Aging in Al-Si-Mg (A356) Alloy

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      https://www.riss.kr/link?id=A3235039

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      다국어 초록 (Multilingual Abstract)

      The Mg₂Si precipitates in A356 alloy have been characterized by high resolution transmission electron microscopy with the combined use of a computer-aided image processing system. We observed that G.P.zones, β$quot;, β', and B' phases aged at 155℃, 175℃, 195℃ and 250℃, respectively. It was found that the orientation relationship between the precipitates and the matrix. The β$quot; phase has a monoclinic structure. The crystallographic orientation relationship is found as follows : (001)_(Al) // (010)_(β$quot;), [3 ̄10]_(Al) // [001]_(β$quot;), [230]_(Al) // [100]_(β$quot;) and β◎105°. The β' phase has two types of the crystal structure; the hexagonal structure with the lattice parameter a = 0.704 ㎚ and the orthorhombic structure with lattice parameters a = 0.734 ㎚, b = 0.658 ㎚ and c = 0.405 ㎚. The B' phase has a hexagonal structure. The angle between the rod direction of B' phase and the [010] direction of the matrix is 10°.
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      The Mg₂Si precipitates in A356 alloy have been characterized by high resolution transmission electron microscopy with the combined use of a computer-aided image processing system. We observed that G.P.zones, β$quot;, β', and B' phases aged at 155...

      The Mg₂Si precipitates in A356 alloy have been characterized by high resolution transmission electron microscopy with the combined use of a computer-aided image processing system. We observed that G.P.zones, β$quot;, β', and B' phases aged at 155℃, 175℃, 195℃ and 250℃, respectively. It was found that the orientation relationship between the precipitates and the matrix. The β$quot; phase has a monoclinic structure. The crystallographic orientation relationship is found as follows : (001)_(Al) // (010)_(β$quot;), [3 ̄10]_(Al) // [001]_(β$quot;), [230]_(Al) // [100]_(β$quot;) and β◎105°. The β' phase has two types of the crystal structure; the hexagonal structure with the lattice parameter a = 0.704 ㎚ and the orthorhombic structure with lattice parameters a = 0.734 ㎚, b = 0.658 ㎚ and c = 0.405 ㎚. The B' phase has a hexagonal structure. The angle between the rod direction of B' phase and the [010] direction of the matrix is 10°.

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      목차 (Table of Contents)

      • 1. 서론
      • 2. 실험 방법
      • 3. 실험 결과
      • 4. 결론
      • 1. 서론
      • 2. 실험 방법
      • 3. 실험 결과
      • 4. 결론
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