Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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Hardness and Electrical Conductivity Changes according to Heat Treatment of Cu-1.6Co-0.38Si Alloy

Cu-1.6Co-0.38Si 합금의 열처리에 따른 경도 및 전기전도도의 변화

  • Kwak, Wonshin (Institute of Material Technology, Poongsan Corporation) ;
  • Lee, Sidam (Institute of Material Technology, Poongsan Corporation)
  • 곽원신 ((주)풍산 소재기술연구원) ;
  • 이시담 ((주)풍산 소재기술연구원)
  • Received : 2020.08.18
  • Accepted : 2020.09.07
  • Published : 2020.09.30
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Abstract

The Cu-Co-Si alloy shows high strength by forming precipitates by aging precipitation heat treatment of supersaturated solid solution treated with solution treatment such as Cu-Ni-Si alloy, and the Co2Si precipitated phase is dispersed in the copper matrix. The effect of aging treatment on the microstructure, mechanical and electrical properties of Cu-Co-Si alloys for electronic devices was investigated. As a results of SEM/EDS analysis, it was found that Co2Si precipitates of 30~300 nm size were distributed in grains. By performing the double aging treatment, it was possible to improve the strength and electrical conductivity by dispersing the fine precipitate evenly.

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References

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