한국주조공학회지 (Journal of Korea Foundry Society)

  • 제23권2호
  • /
  • Pages.69-76
  • /
  • 2003
  • /
  • 1598-706X(pISSN)
  • /
  • 2288-8381(eISSN)
한국주조공학회 (Korea Foundry Society)
권호 표지

A357합금에서 용탕처리가 미세조직 및 기계적 특성에 미치는 영향

Effects of Melt Treatments on Microstructures and Mechanical Properties of A357 Alloy

  • 이정무 (한국기계연구원 재료기술연구부) ;
  • 이성학 (한국기계연구원 재료기술연구부) ;
  • 윤지현 (한국기계연구원 재료기술연구부) ;
  • 김경현 (한국기계연구원 재료기술연구부)
  • Lee, Jung-Moo (Dep.of Materials Engineering, Korea Institute of Machinery of Materials) ;
  • Lee, Sung-Hak (Dep.of Materials Engineering, Korea Institute of Machinery of Materials) ;
  • Yoon, Ji-Hyun (Dep.of Materials Engineering, Korea Institute of Machinery of Materials) ;
  • Kim, Kyung-Hyun (Dep.of Materials Engineering, Korea Institute of Machinery of Materials)
  • 발행 : 2003.04.20
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초록

The present work was undertaken to investigate the mutual effect of the individual melt treatment commonly applied in aluminum foundries such as grain refining, modification, degassing and filtration on the microstructures and the mechanical properties. A357 alloys were fabricated through various melt treatments such as degassing by gas bubbling filtration, modification via the addition of Al-Sr master alloy, grain refining through the addition of Al-Ti-B master alloy and filtration before pouring of the melt. Each melt treatment was performed at its optimum condition reported in the literatures. The effects of each melt treatment and their interactions on the microstructures and mechanical properties of A357 alloy were examined.

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