Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Microstructure and Wear Properties of High Strength Yellow Brass by Addition of Fe, Cr, Mn, Si and Ni

Fe, Cr, Mn, Si, Ni의 첨가에 의한 고력황동의 미세조직과 마모특성

  • Park, Jae-Yong (School of Materials Science and Eng., Seoul National University) ;
  • Kang, Choon-Sik (School of Materials Science and Eng., Seoul National University) ;
  • Shin, Yun-Ho (School of Materials Science and Eng., Seoul National University) ;
  • Bae, Jeong-Chan (Korea Academy Institute of Technology)
  • Published : 1997.06.20
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Abstract

The purpose of this study is to improve hardness and wear resistance of high strength yellow brass by adding Fe, Cr, Mn, Si and Ni. Results showed that NiO, $FeCr_2O_4$ and intermetallic compound $Mn_5Si_3$ were produced when Ni, Fe-Cr and Mn-Si were added to the yellow brass. The hardness and wear tests showed the best results with the presence of the product precipitates and intermetallic compound. The calculation of relative wear resistance by volume fraction of each phases showed that the relative wear resistance of $Mn_5Si_3$ had the highest value, that of ${\beta}$ phase had the lowest. Observation of the worn surface showed that the main wear mechanism were found to be the abrasive wear, and also showed that the wear is caused by mechanical failure at the early stage.

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