Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
권호 표지

Microstructure and Mechanical Properties of Mg-Al-Zn-X Alloys Fabricated by Rotation-Cylinder Method

교반관법으로 제조한 Mg-Al-Zn-X합금의 기계적 특성

  • Lee, Jung-Il (Dept. of Materials Science and Engineering/Nano Tech. Lab., Chungju National University) ;
  • Lee, Joo-Ho (Dept. of Materials Science and Engineering/Nano Tech. Lab., Chungju National University) ;
  • Kim, Young-Ho (Dept. of Materials Science and Engineering/Nano Tech. Lab., Chungju National University) ;
  • Hong, Tae-Whan (Dept. of Materials Science and Engineering/Nano Tech. Lab., Chungju National University) ;
  • Lee, Hoo-In (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Park, Jintae (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Kim, Joon-Soo (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Park, Hyungkyu (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources)
  • 이정일 (충주대학교 신소재공학과) ;
  • 이주호 (충주대학교 신소재공학과) ;
  • 김영호 (충주대학교 신소재공학과) ;
  • 홍태환 (충주대학교 신소재공학과) ;
  • 이후인 (한국지질자원연구원 자원활용소재연구부) ;
  • 박진태 (한국지질자원연구원 자원활용소재연구부) ;
  • 김준수 (한국지질자원연구원 자원활용소재연구부) ;
  • 박형규 (한국지질자원연구원 자원활용소재연구부)
  • Received : 2006.02.24
  • Accepted : 2006.03.13
  • Published : 2006.03.30
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Abstract

Development of Rotation-Cylinder Method(RCM) is given for Mg-Al-Zn-X(X=Sr) alloys, identifying some of the key factors that need to be controlled and indicating subsequent casting processes. Effects of Sr addition on the microstructure and mechanical properties of as-cast and T6 heat-treated Mg-Al-Zn-X alloys fabricated by the RCM were investigated. The microstructural and mechanical characterizations were performed by utilizing optical microscope, scanning electron microscope, transmission electron microscope, hardness test and ultimate tensile test. The solution and aging treatment time was varied to optimize the T6 heat treatment conditions, and experimental results were discussed. The grain size of Sr containing alloys was refined by increasing Sr content, but the tensile and yield strengths were increased by addition up to 1wt% Sr.

Keywords

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