한국주조공학회지 (Journal of Korea Foundry Society)

  • 제32권6호
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  • Pages.269-275
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  • 2012
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  • 1598-706X(pISSN)
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  • 2288-8381(eISSN)
한국주조공학회 (Korea Foundry Society)
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듀오캐스트 Al-Mg-Si/Al 하이브리드 합금의 미세조직과 기계적 변형 특성

Microstructure and Mechanical Behavior of Al-Mg-Si/Al Hybrid Alloy by Duo-casting

  • 한지민 (한국항공대학교 항공재료공학과) ;
  • 김종호 (포항산업과학연구원) ;
  • 박준표 (포항산업과학연구원) ;
  • 장시영 (한국항공대학교 항공재료공학과)
  • Han, Ji-Min (Department of Materials Engineering, Korea Aerospace University) ;
  • Kim, Chong-Ho (New Materials Research Department, RIST) ;
  • Park, Jun-Pyo (New Materials Research Department, RIST) ;
  • Chang, Si Young (Department of Materials Engineering, Korea Aerospace University)
  • 투고 : 2012.09.17
  • 심사 : 2012.11.14
  • 발행 : 2012.12.31
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초록

Al-Mg-Si/Al hybrid alloy was prepared by Duo-casting and the mechanical behavior was evaluated based on their microstructure and mechanical properties. The hybrid aluminum alloy included the Al-Mg-Si alloy with fine eutectic structure, pure Al with the columnar and equiaxed crystals, and the macro-interface existing between Al-Mg-Si alloy and pure Al. The growth of columnar grains in pure Al occurred from the macro-interface. The tensile strength, 0.2% proof stress and bending strength of the hybrid aluminum alloy were almost similar to those of pure Al, and the elongation was much higher than the Al-Mg-Si alloy. The fracture of the hybrid alloy took place in pure Al side, indicating that the macro-interface was well bonded and the mechanical behavior strongly depends on the limited deformation in pure Al side.

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참고문헌

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피인용 문헌

  1. Effect of Heat Treatment on Microstructure and Mechanical Properties of Electromagnetic Duo-Cast Al Hybrid Material vol.28, pp.9, 2018, https://doi.org/10.3740/MRSK.2018.28.9.499
  2. Effect of Casting Speed on Microstructure and Mechanical Properties of Al-Mg-Si/Al Hybrid Material by Duo-Casting vol.30, pp.3, 2012, https://doi.org/10.3740/mrsk.2020.30.3.111