Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Effect of Pressure on Microstructures and Mechanical Properties in Al-5%Ni-5%Mg-(Mm) Alloy Manufactured by Direct Squeeze Casting

직접가압주조한 Al-5%Ni-5%Mg-(Mm)합금의 조직 및 기계적 성질에 미치는 가압력의 영향

  • Woo, Kee-Do (Division of Advanced Matererials Engineering, AHTRI, Chonbuk National University) ;
  • Chung, Dong-Suk (Department of Materials, Chang-Won Polytechnic College) ;
  • Hwang, In-O (ESAB SeAH corporation) ;
  • Kim, Sug-Won (Division of Advanced Matererials Engineering, AHTRI, Chonbuk National University)
  • 우기도 (전북대학교 공과대학 신소재공학부, 자동차신기술 연구소) ;
  • 정동석 (창원기능대학) ;
  • 황인오 ((주)세아 ESAB) ;
  • 김석원 (전북대학교 공과대학 신소재공학부, 자동차신기술 연구소)
  • Published : 2001.04.20
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Abstract

Misch metal (rare earth element, Ce, La, Nd, Pr) which has large influence on high-temperature stability and toughness was added to the Al-5%Ni-5%Mg alloy, and squeeze casting was used for Al-5%Ni-5%Mg-(Mm) alloys. The effect of applied pressure and misch metal additions on mechanical properties in Al-5%Ni-5%Mg alloy by direct squeeze casting has been investigated. The applied pressure were 0 MPa(gravity casting), 25, 50 and 75 MPa. Squeeze-cast Al-5%Ni-5%Mg-(Mm) alloys had better mechanical properties than those of non-pressurized cast alloys because of the increased cooling rate by the application of pressure during solidification. By the addition of misch metal in Al-5%Ni-5%Mg alloy, better combination of strength and elongation was obtained. The addition of 0.3%Mm in Al-5%Ni-5%Mg alloy improved the heat resistant property due to the formation of fine eutectic phases.

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References

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