Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Measurements of Micro-Defects in the Aluminum Thixoformed Part using Computed Tomography(CT) Technology

CT를 이용한 알루미늄 반응고 성형품의 미세 결함 측정

  • 이상용 (국립안동대학교 공과대학 신소재공학부) ;
  • 김찬현 (주식회사 와이지원 기술부)
  • Published : 2009.08.01
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Abstract

Computed tomography(CT) has been applied to measure micro-defects in the aluminum knuckle parts manufactured by the thixoforming process. 6061 aluminum alloys were used to form knuckle samples in the semi-solid temperature after the SIMA processing of billets. Tensile specimens were cut from the different locations in a thixoformed knuckle. The size and the distribution of forming defects in tensile specimens were analyzed using CT scanning and image analysis technology before tensile tests. It has been qualitatively shown that the stress-strain curves were significantly affected by the size and the distribution of forming defects although the defect sizes lie in the range of micro-meters.

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References

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  2. Defect Detection of Brazing Joint in Heat Exchanger Using X-ray Image vol.17, pp.10, 2011, https://doi.org/10.5302/J.ICROS.2011.17.10.1044
  3. Microstructures of Bonding Interfaces after Semi-Solid Brazing of Aluminum Using A357 as a Filler Metal vol.21, pp.8, 2012, https://doi.org/10.5228/KSTP.2012.21.8.506