Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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Microstructure and Mechanical Properties of Al-5%Mg-1%Mn-x%Zn Alloys

Al-5%Mg-1%Mn-x%Zn합금의 미세조직 및 기계적 성질

  • Kim, Jeong-Min (Light Materials Team, Korea Institute of Industrial Technology) ;
  • Seong, Ki-Dug (Light Materials Team, Korea Institute of Industrial Technology) ;
  • Yoo, Jung-Hoon (Department of Metallurgy and Materials Science, Changwon National University) ;
  • Jun, Joong-Hwan (Light Materials Team, Korea Institute of Industrial Technology) ;
  • Kim, Ki-Tae (Light Materials Team, Korea Institute of Industrial Technology) ;
  • Jung, Woon-Jae (Light Materials Team, Korea Institute of Industrial Technology)
  • 김정민 (한국생산기술연구원 경량소재팀) ;
  • 성기덕 (한국생산기술연구원 경량소재팀) ;
  • 유정훈 (창원대학교 금속재료공학과) ;
  • 전중환 (한국생산기술연구원 경량소재팀) ;
  • 김기태 (한국생산기술연구원 경량소재팀) ;
  • 정운재 (한국생산기술연구원 경량소재팀)
  • Received : 2004.11.04
  • Accepted : 2004.12.06
  • Published : 2005.01.30
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Abstract

Effects of Zn and Zr additions on the microstructure and mechanical properties of Al-5%Mg-1%Mn alloys were investigated. As Zn content increased in the Al-Mg-Mn-Zn alloys, the tensile strength and ductility of as-cast alloys rather decreased while the tensile strength of the heat-treated alloys significantly increased mainly due to the precipitation of fine $MgZn_2$ phases. Small amount of Zr was added to the 3%Zn alloy to further enhance the mechanical properties, and it appeared to increase the strength and ductility, especially in as-cast state.

Keywords

References

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