Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Fabrication and characterization of Cu50-Fe50 alloy

Cu50-Fe50 합금의 제조 및 특성평가

  • Lee, Jung-Il (Department of Materials Science and Engineering, Korea National University of Transportation) ;
  • Lam, Dilli (Department of Materials Science and Engineering, Korea National University of Transportation) ;
  • Paeng, Jong Min (Department of Materials Science and Engineering, Korea National University of Transportation) ;
  • Cho, Hyun Su (Department of Materials Science and Engineering, Korea National University of Transportation) ;
  • Yang, Su Min (Department of Materials Science and Engineering, Korea National University of Transportation) ;
  • Ryu, Jeong Ho (Department of Materials Science and Engineering, Korea National University of Transportation)
  • 이정일 (한국교통대학교 신소재공학전공) ;
  • 딜리람 (한국교통대학교 신소재공학전공) ;
  • 팽종민 (한국교통대학교 신소재공학전공) ;
  • 조현수 (한국교통대학교 신소재공학전공) ;
  • 양수민 (한국교통대학교 신소재공학전공) ;
  • 류정호 (한국교통대학교 신소재공학전공)
  • Received : 2018.07.30
  • Accepted : 2018.08.20
  • Published : 2018.08.31
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Abstract

Copper is a well know material for use as heat sink or heat exchanger. However, copper has a considerable low tensile strength and temperature limit. A material that has a good thermal conductivity, low cost, but also excellent mechanical properties are desired. In order to identify the mechanism for the material properties of cast Cu-Fe alloys, $Cu_{50}-Fe_{50}$ (wt.%) alloy was produced by using a high-frequency induction furnace, a typical metal casting process. The Cu-Fe alloy consists of Cu, ${\alpha}$-Fe, ${\gamma}$-Fe with dendrite structures. The crystal structure and microstructure of the prepared $Cu_{50}-Fe_{50}$ alloy were systematically examined using XRD, FE-SEM, EDS and XRF for electrical devices.

구리 금속은 높은 열전도도로 heat sink 혹은 heat exchanger로 널리 사용되고 있다. 그러나 이에 반하여 낮은 인장강도와 사용온도 한계를 가지고 있다. 따라서 높은 열전도도, 낮은 제작비와 함께 우수한 기계적 특성이 요구된다. 본 연구에서는 이를 위하여 동철합금($Cu_{50}-Fe_{50}$ alloy)를 고주파 가열로를 이용하여 제조하고 그 특성을 조사하였다. 제조된 동철합금은 Cu, ${\alpha}$-Fe, ${\gamma}$-Fe 결정구조를 기진 dendrite 미세구조를 보여주었다. 제조된 동철합금은 XRD, FE-SEM, EDS 및 XRF를 이용하여 결정구조 및 미세구조를 분석하였으며 전력공급 접점용 소재로서의 적합성을 확인하고자 하였다.

Keywords

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