高周波誘導加熱を用いたＡｌ‐Ｍｇ系合金の半溶融状態の力学特性取得法の開発

DOI Web Site 被引用文献3件 参考文献12件
  • 座間 淳志
    早稲田大学大学院創造理工学研究科総合機械工学専攻 大学院生
  • 中澤 嵩
    早稲田大学大学院理工学研究科環境資源及材料理工学専攻物質材料理工学専門分野 大学院生
  • 利光 万弘
    早稲田大学大学院創造理工学研究科総合機械工学専攻 大学院生
  • 吉田 誠
    早稲田大学各務記念材料技術研究所

書誌事項

タイトル別名
  • Development of method for measuring mechanical properties of semi-liquid Al-Mg alloy by high frequency induction heating
  • 高周波誘導加熱を用いたAl-Mg系合金の半溶融状態の力学特性取得法の開発
  • コウシュウハ ユウドウ カネツ オ モチイタ Al Mgケイ ゴウキン ノ ハンヨウユウ ジョウタイ ノ リキガク トクセイ シュトクホウ ノ カイハツ

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抄録

Solidification cracking is one of the defects of casting. In order to increase productivity of DC casting and various shape casting processes, predicting the occurrence of solidification cracking by using CAE (Computer Aided Engineering) should be essential. Therefore, it is necessary to obtain mechanical properties of solid-liquid coexistence alloys. However, in the previous reports, flat distribution of temperature in the gage length was not ensured. In this study, tensile test device for a semi-liquid Al–Mg alloy with 2°C of the temperature distribution in the gage length (Max. 10 mm) was developed. Tensile strain was measured by using in-situ observation of marker on the surface of the specimen. As the result, stress-strain curves and fracture strain in various temperatures on the semi-liquid Al–4.3mass%Mg alloy were measured. It is also found that tensile strain tends to be higher at neighborhood of the crack. Thus, strain depends on the gage length. From the observation of the fracture surface and estimation of Scheil-Gulliver micro-segregation, microstructure of the specimen were supposed to change due to the heating process.

収録刊行物

  • 軽金属

    軽金属 61 (5), 181-186, 2011

    一般社団法人 軽金属学会

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