Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Effect of Fe, Mn Contents of Al-9wt%Si-0.3wt%Mg Alloys on the Thickness of Die Soldering Reaction Layer for SKD61 Die Steel

SKD61 금형강의 소착 반응층 두께에 미치는 Al-9wt%Si-0.3wt%Mg 합금의 Fe, Mn 영향

  • Kim, Heon-Joo (Dept. of Metallurgical System Eng., Pukyong National Univ.) ;
  • Cho, Chi-Man (Dept. of Metallurgical System Eng., Pukyong National Univ.) ;
  • Jeong, Chang-Yeol (KITECH, Gwangju Research Center, Materials & Components Team)
  • 김헌주 (부경대학교 신소재공학부 금속시스템공학과) ;
  • 조치만 (부경대학교 신소재공학부 금속시스템공학과) ;
  • 정창렬 (한국생산기술연구원 광주연구센터 부품소재팀)
  • Published : 2009.08.31
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Abstract

Effect of iron and manganese contents on die soldering reaction has been studied in Al-9wt.%Si-0.3wt.%Mg alloy. Ternary ${\alpha}_{hcp}-Al_8Fe_2Si$ and ${\alpha}_{bcc}-Al_8Fe_2Si$ intermetallic compounds formed by interaction diffusion between Al-Si-Mg system alloy melt and SKD61 die steel surface. Thickness of soldering reaction layer in die steel surface decreased as Fe and Mn contents of the melts increased : When Fe content of Al-9wt.%Si-0.3wt.%Mg melts at constant 0.5wt%Mn content was 0.15wt.%, 0.45wt.% and 0.6wt.%, thickness of soldered layer of each alloy was $64.5{\mu}m,\;57.3{\mu}m$ and $46.9{\mu}m$ respectively. For Mn content of the alloy melts at constant 0.45wt.%Fe content was 0.30wt.%, 0.50wt.% and 0.70wt.%, thickness of soldered layer of each alloy was $66.1{\mu}m,\;57.3{\mu}m$ and $48.3{\mu}m$ respectively.

Keywords

References

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