Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Evaluation of Fluidity and Viscosity of Aluminum Alloys in the Mushy Zone by Using Real-time X-ray Observation

실시간 엑스레이 관찰을 통한 알루미늄 합금의 고액 공존구간내 유동도와 점성도 평가

  • 조인성 (한국생산기술연구원 디지털설계센터(COE)) ;
  • 이학주 (동명대학교 공과대학 조선공학과)
  • Published : 2006.06.20
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Abstract

In the present study the new method was proposed by using the real-time X-ray observation and metal die in order to evaluate fluidity and viscosity of the molten metal during pouring into the mold. The special mold for the present experiment was introduced since X-ray could not transmit thick mold wall and scatter the image of the molten metal during pouring. The present study also discussed for evaluation of viscosities by using the flow data from radioscopy images, and the viscosities of six commercial aluminum alloys were evaluated and compared.

Keywords

References

  1. R. Elliott, 'Eutectic Solidification Processing', Butterworths, London, (1983) 137
  2. J. Cambell, 'Castings', Butterworth-Heinemann Ltd., Oxford, (1991) 250
  3. A. K. Dahle and D. H. StJohn, 'Rheological behaviour of the mushy zone and its effect on the formation of casting defects during solidification', Acta Mater., 47 (1999) 31-41 https://doi.org/10.1016/S1359-6454(98)00342-5
  4. R. H. Davies, A. T. Dinsdale, J. A. Gisby, J. A. J. Robinson and S. M. Martin, 'MTDATA - thermodynamic and phase equilibrium software from the national physical laboratory', CALPHAD 2002, 26 (2002) 229-271
  5. D. R. Poirier, K. Yeum and A. L. Maples, 'A thermodynamic prediction for microporosity formation in Aluminum-rich AlCu alloys', MetalJ. Trans. A, 18A (1987) 1979-1987
  6. T. Takahashi, M. Kudoh and K. Yodoshi, 'A Study on the Fluidity of the Liquid in the Solid-Liquid Coexisting Zone', J. Japan Inst. Metals, 43 (1979) 1086-1091 https://doi.org/10.2320/jinstmet1952.43.11_1086