한국주조공학회지 (Journal of Korea Foundry Society)

  • 제21권6호
  • /
  • Pages.343-349
  • /
  • 2001
  • /
  • 1598-706X(pISSN)
  • /
  • 2288-8381(eISSN)
한국주조공학회 (Korea Foundry Society)
권호 표지

7075 및 7050 알루미늄 합금의 응고 거동 및 편석에 미치는 냉각 속도의 영향

The Effect of Cooling Rate on the Solidification Behavior and Segregation of 7075 and 7050 Aluminum Alloys

  • 최정윤 (한국과학기술원 재료공학과) ;
  • 권영동 (한국과학기술원 재료공학과) ;
  • 이주원 (한국과학기술원 재료공학과) ;
  • 이진형 (한국과학기술원 재료공학과)
  • Choi, Jeong-Yun (Department of Material Science and Engineering, KAIST) ;
  • Kwon, Young-Dong (Department of Material Science and Engineering, KAIST) ;
  • Lee, Joo-Won (Department of Material Science and Engineering, KAIST) ;
  • Lee, Zin-Hyoung (Department of Material Science and Engineering, KAIST)
  • 발행 : 2001.12.20
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초록

The effect of cooling rate on the solidification microstructure and segregation behavior of 7075 and 7050 aluminum alloy was investigated. Samples were solidified with cooling rates from 0.3 to $17^{\circ}K/sec$. Using the cooling curves of each sample, liquidus, eutectic and intermetallic reaction temperatures were estimated. The microstructures were characterized in terms of dendrite arm spacing and eutectic volume fraction. The segregation behavior of each alloying element of these alloys in various cooling rates was discussed.

키워드

참고문헌

  1. international Materials Reviews v.37 T. P. Battle
  2. Fundamentals of solidification W. Kurz;D. J. Fisher
  3. Solidification Processing M. C. Flemings
  4. Materials Science and Engineering A v.A283 B. Dutta;M. Rettenmayr
  5. Solidification Characteristics of Aluminum Alloys - Volume 1. Wrought Alloys Lennart Backerud;Ella Krol;Jarmo Tamminen
  6. Smithells Metals Reference Book(6th edi.) E. A. Brendes