The effect of Cu and Sb on the microstructure and mechanical properties in Sn-Sb-Cu-Ni-Cd whitemetal

Sn-Sb-Cu-Ni-Cd whitemetal에서 Cu와 Sb가 미세조직과 기계적 특성에 미치는 영향

  • Kim, Jin-Kon (Department of Nanosystem and Nanoprocess Engineering, Pusan National University) ;
  • Kang, Dae-Sung (Shina Metaltech Co. LTD.) ;
  • Kwon, Young-Jun (Shina Metaltech Co. LTD.) ;
  • Kim, Ki-Sung (Shina Metaltech Co. LTD.) ;
  • Sang, Hie-Sun (School of Fire-protecting Technology, Kyungil University) ;
  • Cho, Hyun (Department of Nanosystem and Nanoprocess Engineering, Pusan National University)
  • 김진곤 (부산대학교 나노시스템공정공학과) ;
  • 강대성 ((주)신아정기) ;
  • 권영준 ((주)신아정기) ;
  • 김기성 ((주)신아정기) ;
  • 상희선 (경일대학교 소방방재학과) ;
  • 조현 (부산대학교 나노시스템공정공학과)
  • Published : 2008.02.29

Abstract

The effects of Cu and Sb on the microstructure and mechanical properties of Sn-Sb-Cu-Ni-Cd whitemetal were investigated. Any compound phase was not observed in the whitemetal with 0.05 wt% Cu, while as the Cu content was increased, star- or needle-like $Cu_6Sn_5$ phases were found. The tensile strength gradually increased with Cu up to 5 % and then remained almost constant with Cu content above 5 %, while the hardness continuously increased with Cu content because of the increased hard $Cu_6Sn_5$ phases. As the Sb content increased, SbSn cuboids were present as well as $Cu_6Sn_5$. The tensile steength and hardness continuously increased and the elongation decreased with Sb content.

Sn-Sb-Cu-Ni-Cd whitemetal에서 Cu와 Sb가 미세조직과 기계적 특성에 미치는 영향을 조사하였다. Cu 함량이 0.05 wt%인 whitemetal에서는 화합물 상이 관찰되지 않았지만 Cu 함량이 증가함에 따라 별 모양 또는 침상 $Cu_6Sn_5$ 상이 관찰되었다. 인장강도는 Cu 함량이 5% 까지는 증가하다가 그 이상에서는 거의 일정하게 유지되었다. 반면에 경도는 경질상이 증가하기 때문에 계속 증가하였다. 또한 Sb 함량이 증가함에 따라 입방형 SbSn 상이 $Cu_6Sn_5$ 상과 함께 관찰되었다. 인장강도와 경도는 Sb 함량이 많아질수록 증가하였고 연선율은 감소하였다.

Keywords

References

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