한국주조공학회지 (Journal of Korea Foundry Society)

  • 제28권5호
  • /
  • Pages.221-225
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  • 2008
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  • 1598-706X(pISSN)
  • /
  • 2288-8381(eISSN)
한국주조공학회 (Korea Foundry Society)
권호 표지

Mg-5Sn-xCa 합금의 열처리에 따른 시효특성

Aging Behaviors of Mg-5Sn-xCa Alloys During Aging Heat Treatments

  • 박준식 (한밭대학교 신소재공학부) ;
  • 김정민 (한밭대학교 신소재공학부) ;
  • 김하영 (한밭대학교 신소재공학부) ;
  • 최양진 (한밭대학교 신소재공학부) ;
  • 이재설 (한국생산기술연구원 경량소재팀) ;
  • 손현택 (한국생산기술연구원 경량소재팀)
  • Park, Joon-Sik (Division of Advanced Materials Engineering, Hanbat National University) ;
  • Kim, Jeong-Min (Division of Advanced Materials Engineering, Hanbat National University) ;
  • Kim, Ha-Young (Division of Advanced Materials Engineering, Hanbat National University) ;
  • Choi, Yang-Jin (Division of Advanced Materials Engineering, Hanbat National University) ;
  • Lee, Jae-Seol (Materials & Parts team, Korea Institute of Industrial Technology) ;
  • Son, Hyun-Taek (Materials & Parts team, Korea Institute of Industrial Technology)
  • 발행 : 2008.09.20
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초록

The structural and hardness variations of Mg-5Sn-(1,2,3) Ca (wt%) alloys have been investigated during various aging heat treatments followed by solution heat treatment at $500^{\circ}C$ for 24 hrs. Maximum hardness of Hv61 has been obtained for Mg-5Sn-3Ca alloys, when the aging treatment was performed at $200^{\circ}C$ for 24 hrs. The microstructures were critically changed when the content of Ca was more than 1wt%, since CaMgSn and $Mg_{2}Ca$ phases were mainly precipitated during aging treatments. The hardness variations with structural evolutions are discussed with respect to the aging temperatures and times.

키워드

참고문헌

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